Web and Mobile Apps, Design and Development

Looking for a reliable partner? You're in the right place. 

We focus on Product Design (UI/UX), Web (Node.js, ASP.NET Core, Laravel, React, Angular, Vue) and Mobile (Swift, Kotlin, Java) Development, BigData and Machine Learning (ML) Solutions as well.

Here at Mentalstack, we believe that nowadays a product should be as smart as beautiful, we help our clients to achieve their business goals faster through the unity of design and technology thinking.

What sets us apart from others, some key facts:

— Microsoft Certified Development Partner;— Top-3 Russian Development companies on Clutch;— Reliable tech-disruptive partner for international Startups, SMBs and Enterprises;— A multidisciplinary in-house team of 60+ IT professionals does a product UI/UX Design, Web and Mobile Development, QA, DevOps, Project Management and Consulting;— Agile-driven Scrum & Kanban collaboration, 1-2 weeks short iterations (sprints), fast and predictable product delivery as a result;— Time & Material or Dedicated Team approaches;— Transparent process: standups, reports, CI/CD, sprint demo, clear communication;— SLA support and long-term collaboration;— All rights for product brand and source files belong to the client and stored on their side;— Three months warranty on the product.

Visit our website to know more about us.

Let's get in touch!

 
$10,000+
 
$25 - $49 / hr
 
50 - 249
 Founded
2016
Show all +
Taganrog, Russia
headquarters
other locations
  • 3B Mayakovskogo St
    Saint Petersburg 191025
    Russia
  • 139/94 Tekucheva St
    Rostov-on-Don 344018
    Russia

Portfolio

Key clients: 
Daymon, Standard Bank, Zirra, Lineslip Solutions, Prosmar, Offshore Heavy Transport, i-Surance, Parknav, Waft

Virtual customization retailer

Web project from Singapore built with Node.js, Angular, TypeScript, Mongo, and hosted on AWS. It’s time to think differently about your perfume. It’s time to explore the possibility of your very own customized fragrance – your unique personal calling card. Already work, profitable, ready for high-loads. Custom complex perfume constructor, ordering system, discounts system, credit card processing.

Award-winning speech recognition web app

Award-winning speech recognition web app. This app is especially interesting for radio stations, podcast providers, and TV stations, and built with Node.js, Angular, ExtJS, TypeScript, Mongo, and hosted on AWS. By means of our innovation, audio files are converted into a text in the shortest possible time. The content can be shared with one click directly on multiple platforms, e.g. on websites, in the app or Facebook and

Twitter

Twitter for cryptocurrency fans, traders, professionals

This web app is something like Twitter for cryptocurrency fans, traders, professionals. Built with Node.js. Angular, hosted on AWS. The concept of the site is a social media site very similar to that of stocktwits.com. In fact, the functionality is exactly the same. The site has a page for each stock, in which a user can comment on in the feed, stream. Each user has their own profile etc. It’s connected to a stock

(crypto-currency) data etc. Much of the user, profile, feed functionality is built into stream API.

Weather forecasts mobile app

Weather forecasts mobile app for iOS and Android, from certified experts, professional meteorologists with degrees in Atmospheric Sciences/Meteorology, built with Swift, Kotlin.

Dating, chat-roulette like mobile app

Dating, chat-roulette like mobile app based on SOUL platform and VoxImplant technologies and infrastructure from Hong Kong. SOUL is a cloud platform which helps to create full-featured dating apps without writing a single line of server-side code. Real-time matching, messaging, custom filters, adaptable video-streaming, and a lot of other cool features.

Cryptocurrency, ICOs mobile app

Cryptocurrency, ICOs mobile app. The great assistant in the information flow! It combines the functions of a modern catalog (list) and a personal account in one useful app with a great design. The application monitors the events of cryptocurrency crowdfunding, systematizes the information, quickly scores each ICO (Initial Coin Offering)

Reviews

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Website Development for Virtual Customization Retailer

"One of the things we've enjoyed most was working with our project manager. He gave us timely project updates, and the estimates were quite precise, so we had great visibility..."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$200,000 to $999,999
Project summary: 

Mentalstack was hired to build a website using Node.js and Angular 2 that would allow people to customize perfume based on their scent preferences.

The Reviewer
 
11-50 employees
 
Singapore
CTO, Virtual Customization Retailer
 
Verified
The Review
Feedback summary: 

Mentalstack performed well overall with the client noting that they are a good value for the money. They would definitely recommend them to a friend or colleague.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.

BACKGROUND

Introduce your business and what you do there.

We are an incubator for different startup projects. I am the CTO.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with Mentalstack?

We have several start-ups going on at the same time, and although we have some in-house developers, they were busy on other projects, so we used Mentalstack to fill in the gap.

SOLUTION

What was the scope of their involvement?

We're building a website that is a perfume personalization tool for mass market. The idea behind it is you can get online and go through a journey of finding the scents that you might like and personalize. We recommend a scent based on user's selections, and we allow to personalize the packaging. Users get the perfume bottle with custom name engraved on it. There are no other people doing anything like that on the market. We partner with one big perfume house that's making the perfume for the customers, but we are doing everything on the technology side and making recommendations. It's a website, and it works on desktop and mobile, it's a Node.js application with Angular 2 on the front-end.

How did you come to work with Mentalstack?

Originally, we were looking for freelancers, but we came across a few agencies. We evaluated their prior work and spoke to them on Skype several times. It ticked all the right boxes from technical and managerial points of view. We decided to get an agency rather than individual freelancers because we feel it works better from the responsibility point of view, tracking and for assurance. Sometimes, freelancers just disappear or you have little visibility and control on what's going on. The price was right, so it was a great choice all round.

How much have you invested with Mentalstack?

The project cost around $200,000.

What is the status of this engagement?

It's in the final stages. It's not completed yet. It's completed to a certain degree, but we're doing some final changes. It's a live product now. We received feedback from customers, so we're making changes. It may carry along for some time.

RESULTS & FEEDBACK

Could you share any evidence that would demonstrate the productivity, quality of work, or the impact of the engagement?

The project is delivered, the site is live. We’re always tracking all project activities. We’ve also done some external QA to validate the quality.

How did Mentalstack perform from a project management standpoint?

The project management was excellent. One of the things we've enjoyed most was working with our project manager. He was quite involved, and he was there all the time when we needed him to be. He gave us timely project updates, and the estimates were quite precise, so we had great visibility. 

What did you find most impressive about Mentalstack?

Compared to freelancers, it's a different category. It's a full stack agency – people with a variety of knowledge sets and skills. The team also made a great effort to deliver the project on time and flexible with working long hours and weekends. 

Are there any areas Mentalstack could improve?

Would be good if Mentalstack had more engineers and broader expertise. So if we need to get more developers on the project or use a different technology stack, they could allocate us resources easily. 
5.0
Overall Score Given all the other things I mentioned.
  • 5.0 Scheduling
    ON TIME / DEADLINES
    They're pretty good. They did miss maybe one or two tasks but, in general, they were good at what they say.
  • 5.0 Cost
    Value / within estimates
    It's good value for the money for us. If they could have slightly more expertise, then it would be excellent. We get what we pay for.
  • 5.0 Quality
    Service & deliverables
    Sometimes, we had to go back and redo things they've done. That had to do with somebody not capturing the requirements accurately. It happened a few times, and it's not major, but they could be more accurate in some parts of the organization.
  • 5.0 NPS
    Willing to refer

Web Design for Real Estate Platform

"Their team has a great eye for design."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
Jan. - Aug. 2019
Project summary: 

Mentalstack redesigned a web app for a real estate platform as well as developed new features. 

The Reviewer
 
1-10 Employees
 
Vancouver, Canada
Mark Johnson
Growth Specialist, LetHub
 
Verified
The Review
Feedback summary: 

Mentalstack produces quality code with incredible project management skills. Their team is creative, attentive, and responsive.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

We're a tech company that makes products for the real estate industry. I'm a growth specialist.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire Mentalstack?

For redesigning the web app and developing new features.

What were your goals for this project?

The goal was to create a prototype.

SOLUTION

How did you select this vendor?

I really liked their designs on dribbble and I selected them from an online freelancing company.

Describe the project and the services they provided in detail.

They designed, developed and tested the web app. Everything was done according to our specifications and wireframes.

What was the team composition?

Overall there were 4 developers and 1 designer involved. The team was lead by a project manager.

RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

The attention to detail helped me demo the product faster.

How was project management arranged and how effective was it?

Project management was the highlight of the project. It was done very professionally and tasks were divided into sprints using Atlassian products. Communications were prompted via skype. There was not a language barrier.

What did you find most impressive about this company?

Attention to detail and good code. Their team has a great eye for design.

Are there any areas for improvement?

Not much improvement needed but perhaps frequent reporting on tasks would be something that can be made better.

5.0
Overall Score Great passionate and talented team!
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
    Affordable compared to similar top companies
  • 5.0 Quality
    Service & deliverables
    Great Attention to detail
  • 5.0 NPS
    Willing to refer

App Development for Taxi-Hailing Platform

"The work environment is so friendly and they know what to do."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
Apr. - Nov. 2019
Project summary: 

Mentalstack revamped iOS and Android apps for a taxi-hailing company. Their team developed a backend and improved customer experience.

The Reviewer
 
11-50 Employees
 
Riyadh, Saudi Arabia
Haitham Nabil
Executive Manager, Captain Co.
 
Not verified
The Review
Feedback summary: 

The apps are reliable and visually pleasing. The Mentalstack team is friendly and skilled. Their project management has led to a good working relationship.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

We operate a Taxi application in Saudi Arabia (Uber Like App) I'm the executive manager

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire Mentalstack?

For revamping our applications to be more scaleable, reliable, and user friendly

What were your goals for this project?

Build a reliable applications and backend to enhance customers experience

SOLUTION

How did you select this vendor?

Through RFP

Describe the project and the services they provided in detail.

They provided:

  • Android Client application
  • Android Driver application
  • iOS Client Application
  • Back End
  • Dashboard and admin panel

What was the team composition?

  • Account manager
  • Project manager
  • Head of mobile development
  • Head of backend development
  • iOS Developers
  • Android Developers
  • UI/UX Designers
  • Backend Developers
  • Testers
  • Dev Ops
RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

The results were great, we finished the first phase. It was pretty user interface along with reliable apps

How was project management arranged and how effective was it?

Project Manager is great and handles all the project stakeholders effectively

What did you find most impressive about this company?

The Organizational Structure. The work environment is so friendly and they know what to do.

Are there any areas for improvement?

We are now working on phase 2 of the project and it will contain adding more features

5.0
Overall Score I'm totally satisfied about thier services
  • 5.0 Scheduling
    ON TIME / DEADLINES
    They deliver on time
  • 5.0 Cost
    Value / within estimates
    Money value is good
  • 5.0 Quality
    Service & deliverables
    Apps working good
  • 5.0 NPS
    Willing to refer
    Highly recomend this company

Web Dev for Blockchain Company's Social Network

“The team’s knowledge has really boosted our development speed.”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
Jan. 2018 - Ongoing
Project summary: 

Mentalstack is creating an innovative social network integrated with the Ethereum blockchain. So far, the team has provided UI design and system development services.

The Reviewer
 
1-10 Employees
 
Singapore
CPO, Blockchain Company
 
Verified
The Review
Feedback summary: 

By leveraging their industry expertise and consistent communication skills, Mentalstack was able to complete an alpha product that met all requirements. They continue to quickly move through the development process.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

I’m the CPO of a blockchain company in Singapore. We are in the process of creating an innovative social network for entrepreneurs.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire Mentalstack?

We needed a partner to create the foundational elements of our product.

What were your goals for this project?

We want to offer a new method of social interaction with connections to the Ethereum blockchain.

SOLUTION

How did you select this vendor?

We chose to work with Mentalstack because of their past experience in the industry, recommendations from colleagues, and because they understood our needs.

Can you go into detail about the services they provided and the scope of the project?

Mentalstack is working on UI design strategy and various system development services.

What was the team composition?

We worked with a project manager, a designer, and a technical team.

RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

Our product is only in its alpha phase, so we haven’t seen any significant impacts yet. We expect to see results within the coming months. The team’s knowledge has really boosted our development speed.

How was project management arranged and how effective was it?

I was impressed by their approach to project management. Overall, the quality of their service has been great.

What did you find most impressive about this company?

I really appreciated their responsive communication skills and their knowledge of our industry and its language.

5.0
Overall Score They offer great quality at a good cost.
  • 5.0 Scheduling
    ON TIME / DEADLINES
    Their scheduling was perfect.
  • 5.0 Cost
    Value / within estimates
    The cost was good.
  • 5.0 Quality
    Service & deliverables
    There haven't been any bugs in their products.
  • 5.0 NPS
    Willing to refer
    Yes, I am willing to refer.

SaaS Dev for Insurance Tech Company

"They’re proactive in planning and meeting client needs."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
Confidential
 
Apr. 2015 - Ongoing
Project summary: 

Mentalstack built a SaaS product using Microsoft Azure. They handled both web design and development on .NET, as well as QA.

The Reviewer
 
1-10 Employees
 
New York, New York
CTO, Insurance Technology Company
 
Verified
The Review
Feedback summary: 

Despite many changes to the scope, Mentalstack delivered the desired product through several sprints. Their team is accommodating and efficient, though they could improve by rotating their employees so that when one leaves, there’s no gap in the process.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

I’m the CTO of a financial services technology company.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire Mentalstack?

We needed to build our software-as-a-service offering on Microsoft Azure.

SOLUTION

How did you select this vendor?

We interviewed several candidates through different venues and evaluated their communication, price, and technical capabilities.

Can you go into detail about the services they provided and the scope of the project?

Mentalstack handled web design and development using the .NET framework. They also provided guidance for Azure.

What was the team composition?

Their team consisted of software engineers, a QA specialist, and a project manager.

RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

Mentalstack helped us achieve our technical goals. We went through a tight sprint cycle and changed direction several times mid-sprint. They accommodated our changes through all the ups and downs of a tech startup.

How was project management arranged and how effective was it?

We worked with a single project manager and a lead engineer, so the process was very effective.

What did you find most impressive about this company?

They’re proactive in planning and meeting client needs.

Are there any areas where they can improve?

They are very good, though key man risk can become an issue when you’re working with employees of this caliber. They should also be better prepared when staff leaves by rotating employees in different duties.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer