At KeyToTech, we're here to make digital transformation easy for businesses and turn startup ideas into reality. Our goal is to simplify and bring your visions to life.
Explore our services:
Discovery and business analysis: We chart a clear path from the inception of your idea to a successful launch.
Concept Validation and MVP Development: We assist in validating your concept with Proof of Concept (PoC) and crafting a functional Minimum Viable Product (MVP) for market testing.
Custom Web & Mobile Software Creation: Our proficiency extends to crafting web applications, mobile apps, and tailored software solutions.
Thorough Testing and Quality Assurance: We ensure the dependability and performance of your software through meticulous testing and quality assurance processes.
Tech Consultation: Rely on our expert guidance to make informed decisions regarding technology choices, architecture, and scalability.
Dedicated Teams: Our dedicated teams seamlessly collaborate with your organization, providing ongoing support and maintenance.
We take pride in delivering high-quality software that aligns precisely with your requirements and is delivered promptly.
As your technology partner, we handle the entire software development process, allowing you to concentrate on your core business. Your success is our ultimate goal. Let's collaborate and create remarkable products together!
Min project size
$10,000+
Hourly rate
$25 - $49 / hr
Employees
10 - 49
Locations
London, England
Year founded
Founded 2017
Languages
2 Languages that we service
English
Ukrainian
3 Locations
London , England
L'viv , Ukraine
London , England
No have been added yet...
Pricing Snapshot
Min. project size
$10,000+
Avg. hourly rate
$25 - $49
/hr
Rating for cost
5
/5
What Clients Have Said
KeyToTech is recognized for providing good value for cost, with clients appreciating their pricing fitting budgets. Specific project costs include £1,000 ($1,250 USD) for an app development, while another client invested $25,000 for ongoing services, indicating flexibility and alignment with diverse client needs.
KeyToTech has demonstrated strong technical expertise across various projects, delivering high-quality mobile and web applications. Their ability to handle complex integrations and develop apps for different platforms like iOS, Android, and web is consistently praised.
Impressive Download and Retention Rates
Projects delivered by KeyToTech have achieved significant success, such as an app with 1.5 million downloads and a low crash rate. Their work leads to positive user engagement, reflecting their ability to deliver functional and reliable products.
Need for Enhanced Milestone Tracking
While project delivery is generally timely, clients suggest that clearer visibility into project milestones and task progress could improve coordination and reduce risks of delays.
Strong Communication Skills
Clients commend KeyToTech for their excellent communication skills, fostering a collaborative environment. They are proactive in discussions, responsive to client needs, and maintain regular updates, which contributes to successful project outcomes.
Successful Client Relationships and Engagement
KeyToTech has built strong, lasting relationships with clients, characterized by mutual respect and effective collaboration. Their commitment to project success and client satisfaction is evident across engagements.
Effective Project Management
The company is noted for effective project management, maintaining timelines, and having structured workflows. Clients appreciate their responsiveness and ability to adapt to changing requirements, although some suggest more detailed milestone tracking could enhance transparency.
"They were pleased with the professional interactions."
Nov 25, 2022
CTO, Healthcare Company
Anonymous
Verified
Other industries
Redwood City, California
51-200 Employees
Online Review
Verified
KeyToTech helped a healthcare company develop a mobile application in React Native. The team implemented all discussed specifications and designs to create an Android and iOS version.
KeyToTech's mobile app received a positive response from customers. The team was communicative, professional, and quick throughout the collaboration. Above all, they delivered outcomes with exceptional quality.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
For what projects/services did your company hire KeyToTech, and what were your goals?
Our company is committed to delivering rapid access to our results; physicians are dependent on those results, and a mobile application supports the notion of a shorter time to action.
SOLUTION
How did you select this vendor and what were the deciding factors?
We implemented a series of pilots, and performed a bakeoff among several vendors, to select according to quality of results followed by speed of implementation. KeyToTech made a really good impression, and moved forward from pilot to project implementation via a collaboration.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
We implemented a react-native app supporting both iOS and Android. Implementation quickly moved from requirements, through specs, through design, and then implementation iterations.
How many people from the vendor's team worked with you, and what were their positions?
1; SE.
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
Overall, we have seen very good resopnse from our customers to the mobile app.
Describe their project management style, including communication tools and timeliness.
Easy to communicate, and easy to have a dialogue around tradeoffs, designs, etc. They were pleased with the professional interactions.
What did you find most impressive or unique about this company?
Beyond the quality of the work and the speed at which solutions were delivered, as an extra, benefited from the more formal deeper CS education.
Are there any areas for improvement or something they could have done differently?
no.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
"Fair."
Willing to Refer
5.0
NPS
"Yes
Mobile App Dev for Mental Health NGO
Application Management & SupportApplication TestingMobile App Development
$10,000 to $49,999
Apr. - Dec. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They demonstrated a clear understanding of the sensitive context of mental health and humanitarian work in Ukraine."
Feb 11, 2026
Head of Programs Department, UA Mental Help
Anton Khodakov
Verified
Non-profit
Ukraine
11-50 Employees
Online Review
Verified
KeyToTech developed a psychological self-help app for a mental health NGO. The team conducted target audience research, designed the UX/UI, developed core functionalities, and tested the app.
KeyToTech successfully achieved all the product development milestones, marking the project's success. The team managed the project well, maintaining regular communication, providing timely updates, and ensuring continuous coordination. Their technical expertise and flexibility also stood out.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Head of Programs Department of UA Mental Help
Describe what your company does in a single sentence.
UA Mental Help (UAMH) is a Ukrainian non-governmental organisation providing accessible, high-quality mental health and psychosocial support (MHPSS) to people affected by the war. UAMH delivers individual psychological consultations, psychoeducation, and community-based activities, working with qualified specialists and trusted partners across Ukraine. The organisation combines direct service delivery with digital tools, including an online platform and mobile application, to ensure timely support, continuity of care, and a user-centred approach, even in challenging conditions such as displacement, insecurity, and disruptions to infrastructure.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire KeyToTech to accomplish?
Development of the "Я Тут" psychological self-help application.
SOLUTION
How did you find KeyToTech?
Online Search
Why did you select KeyToTech over others?
Close to my geographic location
Pricing fit our budget
Company values aligned
How many teammates from KeyToTech were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
1) Target audience research and requirements Target audience research, requirements gathering, and preparation of technical specifications.
2) UI/UX design and prototyping Development of the user interface design, prototyping, and UX testing. Creation of a comprehensive Figma design covering all sections and functionality of the application, including: interactive learning modules on anxiety, depression, and relationships; a section with quick self-help techniques; exercises; a support chat; AI features; questionnaires; alerts and notifications; a personal account; and progress tracking.
3) Core functionality development, database, and API integration Development of core functionality, database, and API integrations, including:
A wellbeing questionnaire to recommend relevant modules based on the user’s self-assessment; A feedback system after completing exercises and modules to inform continuous improvement; Downloadable materials for offline use (e.g., reading and guided techniques); Push notifications and reminders; Animated guidance for 4–5 self-help techniques tailored to different modules (reference example: TikTok link provided); Ability to complete standalone exercises outside the structured modules; Saving techniques to the personal account and “Favorites”; Animated explanations of psychological mechanisms (infographics, micro-animations); Usage metrics (e.g., how many users completed an exercise; how many times a user completed an exercise); Diary functionality (text and/or voice entries); Progress tracking across exercises and trackers; Configuration of the AI assistant as a CBT/ACT/Mindfulness guide and integration into daily check-ins, reflection diary, and module exercises (prompting questions, supporting responses and cognitive restructuring, acting as a first-line support tool, and referring users to a live consultant when needed). 4) Testing and quality assurance Functional and load testing, followed by bug fixing and performance improvements.
5) Release Publishing the application in the App Store and Google Play.
6) Staff training Training staff on how to use the platform and related workflows.
7) Maintenance and user support User support, ongoing updates, and continuous bug fixing.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
product development milestones were achieved.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
The project management was effective and well-structured. The team maintained regular communication, provided timely updates, and ensured continuous coordination across key workstreams (service delivery, monitoring, and digital development). Deliverables were implemented according to the agreed plan, and when delays occurred due to external factors (such as power outages and security conditions), the team adapted workflows quickly to maintain continuity. They were responsive to our needs, flexible in adjusting timelines and priorities, and proactive in proposing solutions to emerging challenges, ensuring stable implementation and consistent reporting throughout the project period.
What was your primary form of communication with KeyToTech?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
What we found most impressive about Keytotech was their strong combination of technical expertise and genuine mission-driven engagement. They were not only able to deliver a complex digital product in a structured and reliable way, but also they demonstrated a clear understanding of the sensitive context of mental health and humanitarian work in Ukraine. Their team was highly responsive, flexible in adapting to evolving needs, and proactive in proposing practical solutions — especially around user experience, stability, and scalability. The ability to translate our ideas into a functional, user-friendly application while maintaining consistent communication and accountability made their contribution both unique and highly valuable.
Are there any areas for improvement or something KeyToTech could have done differently?
Clearer timeline and milestone visibility: While delivery was effective, having a more detailed milestone tracker (with clear ownership, deadlines, and dependencies) would have improved transparency and reduced the risk of delays in coordination.
"The KeyToTech team is knowledgeable, courteous, and respectful at all times."
Oct 28, 2024
Founder & CEO, Bondee Tech
Amr Fahmy
Verified
Other industries
Dubai, United Arab Emirates
1-10 Employees
Online Review
Verified
KeyToTech has developed an app for a technology company. The team has integrated mobile and portal key features, built a development plan, worked on UX/UI design, ran testing and QA, and collected feedback.
KeyToTech has delivered the app and made it available for testers. App Store reviews are pending. So far, the team has delivered on time, performed requested changes, and been present, knowledgeable, and courteous. Overall, the team's flexibility, business logic, and technical know-how stand out.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Founder & CEO of Bondee Tech
Describe what your company does in a single sentence.
Bondee Tech is an innovative and client centric technology house producing useful, cool and innovative applications, , to serve humanity and render daily lives easier and more enjoyable.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire KeyToTech to accomplish?
Develop and launch the "Swopp" App MVP and V1 - Using Flutter/PostgreSQL/Kotlin/Springboot/Digital Ocean
SOLUTION
How did you find KeyToTech?
upwork
Why did you select KeyToTech over others?
High ratings
Pricing fit our budget
Good Communication with Founder
How many teammates from KeyToTech were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Baddel development roadmap projection This document outlines the strategic plan for the development stages, beginning with a Proof of Concept (PoC), followed by a Minimum Viable Product (MVP), and culminating in the launch of our first full-featured version.
Proof of Concept (PoC): Objective:
To validate the feasibility of Baddel by developing a simplified version of the app that illustrates the core functionality of item swapping among a limited group of users.
Mobile app Key Features: a. User Authorization: Allow users to sign-up/sign-in using email authentication.
b. Item Listing: Enable users to list items they wish to swap, providing item descriptions and images.
c. Basic Search Functionality: Users can perform rudimentary searches for listed items.
d. Checkout: Initiate a basic checkout process to get the product.
Portal Key Features: a. Products validation: Review and Approve Products.
B. Valuate Products - Web Scraping - Image Recognition
PoC Development Plan: a. Timeline: 2-3 weeks
b. Select a small test group (around 10-20 users)
c. Utilize a simplified UI/UX design
d. Introduce analytics, metrics and KPI
e. Gather feedback regarding app usability and concept validation
Success Criteria: a. Positive affirmation of the app concept from the test group.
b. Successful listings, searches, and basic checkout executed within the app.
c. Feedback compilation and review to inform the development of the MVP.
Minimum Viable Product (MVP): Objective:
To build a more functional version of Baddel that incorporates key learning from the PoC stage, ensuring market viability while providing essential features that facilitate user-friendly item exchanges.
Mobile Key Features (in addition to PoC features): a. Enhanced Search Functionality: Including filters for categories, distance, item condition, etc.
b. User Profiles: Detailed information, including ratings and reviews.
c. Swap Agreement: Digital agreement form to ensure users consent to terms of the swap.
This has to be in POC legally
d. Notifications: Alerts for messages, item swap requests, and updates.
e. Image upload enhancement: Including image editing and multiple uploads.
f. Return item
A basic one has to exist in POC I think - otherwise we can be in a deadlock / unsatisfied User
g. Profiles
h. TBD
Portal Key Features (in addition to PoC features): a. Products validation: Review and Approve Products.
b. TBD
MVP Development Plan: a. Timeline: depends on the POC results
b. Beta Users: Expand user testing to a larger group (around 20-50 users).
c. UI/UX Enhancement: Based on feedback from the PoC stage.
d. Perform rigorous bug testing and QA.
e. Marketing: Consider early-stage marketing and create buzz around the upcoming full version.
Success Criteria: a. Active engagement and retention statistics from beta users.
b. Feedback collection on additional features and overall app performance.
c. Analyzing user interaction patterns with different features.
d. Minimal critical bugs, ensuring a smooth user experience.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
App Ios and Android are on App Stores by invitation
Testers allowed access and are able to use the App - bugs and mistakes in business logic and development are less with time bust still there We should do App Stores review next few weeks, so hopefully it would pass..
Describe their project management. Did they deliver items on time? How did they respond to your needs?
KeyToTech Team were present and delivered a bit later than time envisaged, but many tweaks were requested, and some of the features like API Integration with shipping companies, took more time than originally anticipated The KeyToTech team is knowledgeable, courteous, and respectful at all times.
What was your primary form of communication with KeyToTech?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
The flexibility and enhancing the deliverables with deep dives in business logic and value porposition. They did not throw technical jargons around, and always tried to deliver the messsages in an easily digestable non technical formats
Are there any areas for improvement or something KeyToTech could have done differently?
Include more people in the Dev team - especially senior ones work on educating the client on the platforms used, the repositories, source code, PM Software..
Give more accurate times for the time and team requirements for such a project
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Mobile App Dev for Postal & Logistics Company
Mobile App Development
$50,000 to $199,999
Jan. 2020 - Ongoing
5.0
Quality
4.5
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They always have their own opinion on the implementation and development options in making the right decision."
Jan 12, 2022
Product Owner, Meest Group
Sergii Koziuk
Verified
Other industries
Lviv, Ukraine
1,001-5,000 Employees
Online Review
Verified
KeyToTech provides mobile app development services for a postal and logistics company. They have built the client's app that gathers information and statistics to improve their operational processes.
Over a year and a half, the platform have attracted over 800 thousand users, have reached the top 10 best in the industry category, and have improved their internal processes. The team has built a solid relationship working together for quite some time. KeyToTech's ideas impresses the client so far.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I'm the PO of this project. We are developing an application that allows you to receive and send parcels around the world, track these parcels and find the nearest points with our services
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire KeyToTech, and what were your goals?
We needed to develop applications on several platforms, simple, which work well and do not create difficulties for our customers. Also integration with our internal backend and api.
SOLUTION
How did you select this vendor and what were the deciding factors?
Good, reasonable price. Quick selection of staff for the project. Positive thoughts and attitude, involvement in the project.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
Mobile application development on iOS, Android, Huawei platforms Development of key features. Integration of all existing and new endpoints of our API. Collection of information and statistics to improve operational processes and the application itself. Collection of feedback from users and ratings of our services.
How many resources from the vendor's team worked with you, and what were their positions?
2 android
2 ios developer
project manager
QA
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
Over the past year and a half, we have managed to attract 800+ thousand users, reach the top 10 in the category of business in the markets, and improve many internal processes.
Describe their project management style, including communication tools and timeliness.
We are already communicating with their project manager like old friends, without exaggeration. We need approval at higher levels - we use correspondence, we need to resolve an urgent issue - a phone call and we are always in touch. We hold daily standups to stay on the same wave.
What did you find most impressive or unique about this company?
They always have their own opinion on the implementation and development options in making the right decision. They are also worried about the project and we are all happy with our results.
Are there any areas for improvement or something they could have done differently?
Everything is perfect
RATINGS
5.0
Quality
4.5
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
iOS Application Dev for E-Learning Company
Mobile App Development
Less than $10,000
Apr. 2020 - Ongoing
4.5
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0
"Their attention to detail and ability to go above and beyond the tasks set stand out."
May 28, 2020
Owner, E-Learning Company
Anonymous
Verified
Education
London, England
1-10 Employees
Phone Interview
Verified
KeyToTech is developing a mobile application, spearheading the process from start to finish. The app is now in beta testing.
The client is pleased with the app development process to date, highlighting KeyToTech’s transparency regarding deadlines and progress. They’ve also demonstrated proactive communication. Customers can expect an attentive partner that finds innovative solutions and workarounds.
A Clutch analyst personally interviewed this
client over the phone. Below is an edited
transcript.
BACKGROUND
Introduce your business and what you do there.
I run an app company catered to learners with special needs.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with KeyToTech?
They’ve been great in terms of the development of the iOS side of the app. They’ve done all the development work so far for the past 3-4 months.
SOLUTION
What was the scope of their involvement?
They looked at all the requirements, did a thorough review, and came back with next steps including how to access it, what measures were in place, and so on. From there, we put a proposal together and agreed on milestones and deadlines. The work is completed (I tested and checked it) and they released it to me through TestFlight.
What is the team composition?
I’m working with three developers. I’ve been meeting with one who’s the lead.
How did you come to work with KeyToTech?
I found them on UpWork. They had excellent reviews and a very good portfolio. They were responsive to queries as well.
How much have you invested with them?
We’ve spent £1,000 ($1,250 USD) so far.
What is the status of this engagement?
We began working with them in April 2020. The app is in the beta test phase right now.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
Aesthetically, the app is up to my expectations. There’s still more work to do on the app overall, but KeyToTech has been very transparent throughout the whole process. We’re on the same page. Everything thus far has been to scope, and when I ask them for things they come back with a plan to accomplish it. And if they can’t do something then they’ll tell me and then create a workaround. The workaround is sometimes better than my original idea.
How did KeyToTech perform from a project management standpoint?
It’s very strong. We communicate every day. They’re professional and deadline-driven, which includes telling me along the way if things need to be extended.
What did you find most impressive about them?
Their attention to detail and ability to go above and beyond the tasks set stand out. There were instances between milestones with a large amount of work and they never said no. They haven’t said no at all throughout this relatively complex project.
Are there any areas they could improve?
In certain ways, they could have dug a bit deeper into some of the issues. We got to the destination in the end but sometimes a bit more due diligence would have been good. I’m satisfied with what they’ve done overall though.
Do you have any advice for potential customers?
Be very detailed and know exactly what you want from the start. That’s the most important ingredient going into a relationship with any developer. For those who have a steep learning curve, it’s important that documentation is reviewed thoroughly.
RATINGS
4.5
Quality
5.0
Service & Deliverables
"They could have been a bit faster on turnaround time for milestone two."
Schedule
4.5
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Mobile App Dev for Location Data Platform
Mobile App Development
$10,000 to $49,999
Apr. 2019 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"KeyToTech’s resources are dedicated—they care about the project and put their heart into it."
Nov 4, 2019
CTO, IT Company
Anonymous
Verified
Other industries
Tel Aviv, Israel
1-10 Employees
Phone Interview
Verified
KeyToTech supplied resources to build an iOS app for a location data platform. Their involvement is ongoing, expanding to include Android and backend development.
KeyToTech delivers high-quality development work, enabling a continuous partnership that’s growing. Their resources are reliable, professional, and adept at overcoming challenges. Their willingness to work hard and do their best stands out.
A Clutch analyst personally interviewed this
client over the phone. Below is an edited
transcript.
BACKGROUND
Introduce your business and what you do there.
I’m the CTO of an IT company. We create a platform that lets users share location-based data in a social way.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with KeyToTech?
We initially needed a developer for our iOS app, which is part of a whole array of products that we’re using for our platform.
SOLUTION
What was the scope of their involvement?
KeyToTech started by developing our iOS app. We have a process in which we integrate a developer into our company. We have all sorts of kickstart meetings that we talk about the process and how we do development in the company. Then we just started working.
We were satisfied with the app development and decided to enlarge KeyToTech’s scope. We then hired an Android developer and a backend developer from them.
What is the team composition?
There’s currently one iOS developer, one Android developer, and one backend developer. We’re thinking about hiring more in the future.
How did you come to work with KeyToTech?
I found KeyToTech on Upwork a year ago. The CEO contacted me and I saved his contact details because we liked how his company felt to us. We didn’t hire them then but we were still in touch via Skype. We eventually decided to hire one of their iOS developers.
How much have you invested with them?
We’ve spent $25,000.
What is the status of this engagement?
We started working together in April 2019. and the work is ongoing.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
Everything has gone well with KeyToTech; in fact, we’re thinking about hiring more personnel from them.
We had a lot of features that we entered into our iOS and Android app and that KeyToTech implemented successfully. They partially did some pieces of work and fully completed others.
We’re satisfied with their performance. They’re pretty clear, and we can see their dedication. They try to get to the bottom of each task to understand exactly what we want from them and how to perform it in the best way possible.
How did KeyToTech perform from a project management standpoint?
Our team handles project management. I speak with KeyToTech’s developers on a daily basis. We talk about the tasks and how we should move forward with the tasks. I speak with the CEO depending on the need. It could go a month without me talking with him, but it could also be a period of time I speak with him weekly.
What did you find most impressive about them?
KeyToTech’s resources are dedicated—they care about the project and put their heart into it. They work very hard and are professional.
Are there any areas they could improve?
When I’m looking to hire more of KeyToTech’s staff, I often have to ask about the status of available developers in the company. If they could be more transparent about those processes, it’d be easier for me to make those decisions.
Do you have any advice for potential customers?
Be sure the communication between you and the hired developers is smooth and that everyone is understanding each other. Aside from that, go for it—we’re having a great experience with KeyToTech.
RATINGS
5.0
"Everything is really great."
Quality
5.0
Service & Deliverables
"They’re professional and dedicated."
Schedule
5.0
On time / deadlines
"They’re on time for every meeting we’ve scheduled. They’re very flexible if I need to change things last minute."
Cost
5.0
Value / within estimates
"Their prices are really good. There’s a lot of communication around it."
Willing to Refer
5.0
NPS
Development for Language Learning Platform
Mobile App Development
Less than $10,000
Nov. 2018 - Mar. 2019
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"The project went smoothly from start to finish."
Jun 25, 2019
Co-Founder, Learning Platform
Eunhye Choi
Education
Seoul, South Korea
1-10 Employees
Online Review
KeyToTech created an MVP for a Korean phrasebook app from scratch, including frontend, backend, and mobile development.
The app works well and the number of our users is rapidly growing. The KeyToTech's team is communicative and skilled at their craft.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I'm a co-founder of the Korean learning platform. We are a team of translators and language specialist helping to make the process of learning a new language easier.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire KeyToTech?
We wanted to create an MVP app of Korean phrasebook from scratch, including front end, back end, and mobile development.
What were your goals for this project?
The goal was to create easy to use native IOS and Android mobile apps with the ability to choose the categorized set of phrases, search through the app in multiple languages, add favorite phrases, and make study notes.
SOLUTION
How did you select this vendor?
They were recommended to us by a startup who worked with them before.
Describe the project in detail.
Korean Phrasebook is an easy to use mobile application for anyone who is interested in studying Korean language. An application includes a list of essential words and phrases, dictionary and dialogs. You can save favorite phrases, add notes and search by words inside the app.
What was the team composition?
We were assigned with Project Manager, Designer, Native Android, and IOS developers and QA engineer.
RESULTS & FEEDBACK
Can you share any outcomes from the project that demonstrate progress or success?
Both apps work great. The number of our users is rapidly growing and we've received pretty good reviews. Right now we are in the process of creating new content for the phrasebook and figuring out what functionality we need next. I hope we would be able to continue further development work with KeyToTech team.
How effective was the workflow between your team and theirs?
The project went smoothly from start to finish. They kept us updated throughout the process. We used Skype and email to communicate. They're very prompt and have never missed a deadline.
What did you find most impressive about this company?
Working with them was a pleasure. High-quality developers and great communication! As an early stage startup, we had a lot of pitfalls but KeyToTech team helped us all the way through, making very useful suggestions on how to improve our applications. I am highly satisfied with their services and recommend them to everyone who is looking for excellent software specialists and long-term partners.
Are there any areas for improvement?
There are none I can think of.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Mobile App Development for App Studio
Mobile App Development
Confidential
Apr. 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"KeyToTech is fast, reliable, and responsive."
Dec 4, 2025
Co-Founder & CEO, Cranberry Apps GmbH & Co. KG
Stefan Liesendahl
Verified
Information technology
Berlin, Germany
1-10 Employees
Online Review
Verified
KeyToTech has developed the Android version of an app for a Berlin-based app studio. The team has worked on the app's architecture, features, and structure. KeyToTech has also uploaded and maintained the app.
The app has been successfully launched on the Google Play Store and has over 1.5 million downloads and a low crash rate of less than 0.5%. KeyToTech has delivered on time and is very responsive and independent. The team communicates well and delivers results with little guidance.
BACKGROUND
Introduce your business and what you do there.
I'm the co-founder and CEO of Cranberry Apps, an App studio that crafts apps for the App Store and Google Play.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire KeyToTech to accomplish for Cranberry Apps?
We hired KeyToTech to build the Android version of one of our apps.
SOLUTION
Can you describe the scope of their involvement in this project?
KeyToTech has been responsible for the entire development of the app, including uploading, maintaining, and fixing it. The team has worked on almost all the parts of the app, including the architecture, main features, and structure. KeyToTech has built the app from the ground up.
What is the team composition?
We work with 2–5 teammates from KeyToTech.
How did you come to work with KeyToTech?
We found KeyToTech on Upwork and chose them over other options because of their high ratings and good references.
What is the status of this engagement?
We started working with KeyToTech in April 2025, and our engagement is ongoing.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
KeyToTech has successfully launched the app on the Google Play Store. Since its launch, the app has had over 1.5 million downloads and a retention rate. The app also has a low crash rate of less than 0.5%.
How did KeyToTech perform from a project management standpoint?
KeyToTech always delivers on time and is very responsive and independent. The team handles shipping and maintenance by themselves. We communicate via virtual meetings, emails, and messaging apps.
What did you find most impressive about them?
KeyToTech is fast, reliable, and responsive. The team asks few questions but delivers results.
Are there any areas they could improve?
Nothing comes to mind rn.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Mobile App Dev for Financial Services Company
API DevelopmentApplication TestingMobile App Development
Confidential
Aug. 2020 - Apr. 2021
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They were not afraid to tackle a big task and get on with the work."
Nov 13, 2023
CEO, Financial Services Company
Jovan Pavlicevic
Financial services
New Zealand
11-50 Employees
Online Review
KeyToTech built an MVP app for a financial services company. They built a consumer-facing frontend. They also developed the backend and integrated security systems.
Thanks to KeyToTech, the client was able to raise capital and launch the product, garnering thousands of end customers. They communicated frequently via virtual meetings, ensuring an effective workflow. Their timely delivery, cost-effective solutions, and easygoing attitude were noteworthy.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of Financial Services company
Describe what your company does in a single sentence.
Banking / financial services, payments and card issuance, with accompanying app.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire KeyToTech to accomplish?
Build MVP to help get to market and raise capital
SOLUTION
How did you find KeyToTech?
Online Search
Why did you select KeyToTech over others?
High ratings
Good value for cost
Company values aligned
How many teammates from KeyToTech were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
We started with an open brief, and over time that expanded. Safe to say, 'build an MVP app for a consumer-facing brand' was a huge task. This included back end as well, connecting to various high-security services. Bogdan and his team nailed it.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Raising capital and getting the product into market, onboarding thousands of customers, fast.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
On time, on budget, easy to deal with, and clear comms.
What was your primary form of communication with KeyToTech?
Virtual Meeting
What did you find most impressive or unique about this company?
They were not afraid to tackle a big task and get on with the work.
Are there any areas for improvement or something KeyToTech could have done differently?
No improvements to suggest. It was a big, challenging project, done on budget and on time.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Mobile App Development for Tour Digital Solutions Company
Custom Software DevelopmentMobile App Development
Confidential
Aug. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Their great attitude and collaborative approach are impressive; they're proactive in suggesting alternative solutions."
Oct 31, 2023
CEO, Tour Digital Solutions Company
Bob Rogers
Verified
Consumer products & services
Berlin, Germany
1-10 Employees
Online Review
Verified
KeyToTech has rebuilt an app based on a new design for a tour digital solutions company. The app includes Google Maps and API integrations, Flutter coding for the UI and backend, and more.
KeyToTech’s work has resulted in improved performance and dependability over time. The team is flexible and efficient; they prioritize work to deliver key functionalities on time. Moreover, they adapt to new requirements and maintain an excellent attitude. Customers can expect great service.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of the company
Describe what your company does in a single sentence.
Provide digital solutions for adventure tour operators
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire KeyToTech to accomplish?
Create a mobile companion app
SOLUTION
How did you find KeyToTech?
Online Search
Why did you select KeyToTech over others?
High ratings
Great culture fit
Good value for cost
How many teammates from KeyToTech were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
we required a complete rebuild of an existing app based on a new design. The app functionality included API integration to our CMS, coding in Flutter of the UI and backend, integration of Google maps and location services, implementation of group location sharing.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Correct functioning of the app on both Android and iOS for the required functionality. Noticeable improvements to performance and dependability over time. Quick resolution of issues.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Made every effort to deliver what was required on time. Prioritized work so that key functionality would be done in time for testing/release. Flexible in adapting to new requirements.
What was your primary form of communication with KeyToTech?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Their great attitude and collaborative approach are impressive; they're proactive in suggesting alternative solutions.
Are there any areas for improvement or something KeyToTech could have done differently?
Greater visibility into status of tasks in progress would be helpful.
"We were impressed with their quickness and outcome-oriented approach."
Oct 30, 2023
Founder, ChefTreff
Jan Henri Kalinowski
Verified
Education
Germany
1-10 Employees
Online Review
Verified
KeyToTech provided mobile app development and design services for an education nonprofit. The team was tasked with building a matchmaking app for the client's conference.
KeyToTech delivered exactly what was needed, leaving the client satisfied with the collaboration. The team boasted top-notch communication skills and impressed with their results-driven approach and ability to deliver quality services quickly. The partners interacted mainly via virtual meetings.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Founder of ChefTreff
Describe what your company does in a single sentence.
Employer Branding & Recruiting
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire KeyToTech to accomplish?
App for matchmaking
SOLUTION
How did you find KeyToTech?
Online Search
Why did you select KeyToTech over others?
Pricing fit our budget
Good value for cost
How many teammates from KeyToTech were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
We needed a custom matchmaking app for our conference.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Chats and matches
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Great communication
What was your primary form of communication with KeyToTech?
Virtual Meeting
What did you find most impressive or unique about this company?
We were impressed with their quickness and outcome-oriented approach.
Are there any areas for improvement or something KeyToTech could have done differently?
no
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Showing 1-11 of
15 Reviews
Flutter PoC and MVP mobile applications
Have an idea and need to test the hypothesis and verify the technology?
We suggest rapid MVP development using the Flutter framework.
It's a budget-conscious option with great opportunities for future scaling into MVP.
We use an agile, iterative approach, which allows you to make as many changes in the requirements as needed.
Small
Best for testing technology
$4,900
/total
Cross-Platform App
Number of Screens: 1 to 3
Testing
2
week
delivery
Medium
Best for testing hypothesis
$9,800
/total
Cross-Platform App
Analytics
Number of Screens: 4 to 8
Upload to App Store
Testing
6
week
delivery
Large
Best for testing value-proposition and market fit
$15,900
/total
Cross-Platform App
Analytics
Number of Screens: 9 plus
Product/Service Description Page
Push Notifications
3
month
delivery
Features
Small
$4,900
/total
Medium
$9,800
/total
Large
$15,900
/total
Cross-Platform App
Analytics
–
Number of Screens
1 to 3
4 to 8
9 plus
Product/Service Description Page
–
–
Push Notifications
–
–
Upload to App Store
–
Testing
Small
$4,900
/total
Cross-Platform App
Analytics
–
Number of Screens
1 to 3
Product/Service Description Page
–
Push Notifications
–
Upload to App Store
–
Testing
Medium
$9,800
/total
Cross-Platform App
Analytics
Number of Screens
4 to 8
Product/Service Description Page
–
Push Notifications
–
Upload to App Store
Testing
Large
$15,900
/total
Cross-Platform App
Analytics
Number of Screens
9 plus
Product/Service Description Page
Push Notifications
Upload to App Store
Testing
Our Story
We’re KeyToTech: a Ukraine-born, London-scaling software team with 10+ years, 30+ professionals and 50+ projects. Our product-minded, data-driven engineers and designers deliver cost-effective, scalable mobile apps across different industries. Clients praise our professionalism, communication, proactivity and measurable results: MVPs, large-platform growth (2m+ users) and repeat partnerships.
Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.
If you’re not seeing exactly what you need here, send this company a custom message.
You can talk about your project needs, price, and timeline to get started on your project.
Get connected to see updates from KeyToTech like new case studies, latest reviews, their latest masterpieces in their portfolio, delivered straight to you.