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It doesn’t matter if your idea started in a garage or a top 500 company. From user research, UX design, UI design, and scalable backend solutions to machine learning and mobile apps – we provide it all.
Boost Your Team
No matter the size of your vision, we are here for you from day one to shipping. We are based in Poland, and manage the best local talent for our global clients. You can outsource the development of the whole product or use our developers and UX/UI design specialists to boost your team.
Materialize Your Vision
We love great ideas. Our mission is to help you materialize them and realize their full potential through technology. We have all the expertise you need. User research, scalable backend development, machine learning, and app development – with our understanding of your business needs, there’s nothing we can’t do.
Evolve Your Business
From the garage to Unicorns – no matter the size, we deliver the best technological solutions for your challenges – from establishing your product and making your company grow, to helping you evolve to the next level.
Focus
Recommended Providers
Portfolio

Helping Hand 24 - Digital Therapy Platform
Iterators supported Helping Hand 24 designing and developing app supporting their new approach to addiction therapy.
Our work included creating a mobile application for patients struggling with alcohol addiction, as well as a web app for therapists to communicate with patients and check their progress.

Boomerun — Walk-o-nomics
Boomerun is a #Walkonomics loyalty platform. You walk and gain points to buy stuff! It encourages healthy lifestyle and helps brands activate healthy active consumer.

VetItForward — Veteran Jobs Matching Platform
At Iterators, we created a platform with a unique matching mechanism that pairs veterans with jobs based on their skills and translates their military experience to civilian positions. The tool also gives veterans a place to ask the larger community questions, share employer reviews, and seek advice about career path development.

GuestRoom — AirBnb for Friends and Family
Guest Room was designed for people who share their apartments and summer houses with friends and family. Hospitality can be challenging. You have to deal with multiple bookings, organizing cleaning, and make sure keys are shared with the right people.

Bellhop App — Ride Sharing Price Comparison
The Bellhop App lets you compare pricing across major rideshares so you can save money on every ride. It’s equipped with complex artificial intelligence and machine learning technology.

Food Delivery App Design
A food delivery app might seem like a simple tool. But there are many challenges to overcome during the process of designing and building on-demand applications. We address all of those issues in an article published on our blog. This particular app was used to demonstrate how different features of an “Uber for X” app work.
Reviews
the project
Integration Development for Social Impact Platform
"Iterators had a great level of service — they were on top of everything and pushed us to get tasks done."
the reviewer
the review
A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.
Introduce your business and what you do there.
I am the head of product at a social impact platform.
What challenge were you trying to address with Iterators?
We wanted to build a Slack integration into our platform. We're an early-stage startup and didn't have the resources to make integration development a top priority.
We decided to outsource the project because it didn't require a lot of internal knowledge.
What was the scope of their involvement?
Iterators fully developed the Slack integration feature for our platform. We started with a discovery process — they provided us with project management services and helped define the product requirements.
They built a product spec of what the product would look like, how it would be built, and how it would work. They then diagramed the basics of the integration and showed us how it would integrate into our platform.
We had a few review sessions before they developed the final product.
What is the team composition?
I worked with 3–4 teammates from Iterators.
How did you come to work with Iterators?
A teammate of mine hired them. We were looking for a partner that already had experience working with Slack integrations. This wasn't Iterators' first time working in Slack integrations, and they were knowledgeable about the industry — they had the expertise to deliver for us and were very responsive.
How much have you invested with them?
We spent around $20,000 with Iterators.
What is the status of this engagement?
We worked together from March–September 2021. However, we'll be working with them again when we do more iterations of the feature.
What evidence can you share that demonstrates the impact of the engagement?
We are tracking some metrics, including user engagement, but we haven't rolled out the feature enough to have anything conclusive.
However, we have shown several of our customers the Slack integration feature, and they're excited about it and how much it will help them.
How did Iterators perform from a project management standpoint?
They had their own Jira board that they shared with us and we communicated daily over Slack.
It was a very iterative development process. We had weekly update calls so we could sync up on the project process. The Iterators team ensured that we provided them with the work they needed from our end to finish product development, including notification triggers.
Even when we had to expand the scope of work, the Iterators team was flexible and did extra work for us.
The final deliverable ended up a little behind schedule, but that was because my team was behind on their coding.
What did you find most impressive about them?
Iterators had an excellent level of service — they were on top of everything and pushed us to get tasks done. They were responsive, and their timeliness made for a pleasant work environment and a good working relationship.
Are there any areas they could improve?
It would have been helpful if we had begun using the Jira board earlier in the development process — it wasn't available to us from day one and made it harder to track the project.
Do you have any advice for potential customers?
Clients need to collaborate and set up expectations and a solid communication method with Iterators.
the project
Web Dev, Design & Hosting for Tech Startup
"They believe in our mission — they’ve expressed genuine enthusiasm for our business."
the reviewer
the review
A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.
Introduce your business and what you do there.
I’m the co-founder and CEO of a venture-backed tech startup.
What challenge were you trying to address with Iterators?
As a startup, we were still trying to find our product-market fit, and we wanted a flexible engineering solution before investing in our own engineering capability. We hired Iterators to help us develop our product.
What was the scope of their involvement?
Iterators is providing us with a full-service engineering team. They’re doing front- and backend development and database hosting of our platform.
Iterators are working on various technologies, including AWS, DigitalOcean, and other web-based applications. They’ve also built a video-based product and an assessment product for us, and they’ve done a significant amount of security development for our enterprise clients.
Additionally, Iterators has provided us with some minimal design work, and they’ve handled our platform’s UX/UI. They’ve also supported our technology roadmap; Jacek (Managing Partner) performed as our interim CTO several times.
Iterators is also providing us with support for any server issues that may come up with our customers. They’ve also updated our marketing website.
What is the team composition?
We’ve worked with two frontend developers, two backend developers, and a project manager. Jacek is our main point of contact.
How did you come to work with Iterators?
We tried 2–3 different partners, and we found Iterators to be the best fit for our needs. A lot of it had to do with their communication skills and ability to be a good partner as a remote development team. That said, their pricing was just within the market rate, and it didn’t affect our decision to work with them.
How much have you invested with them?
We’ve spent about $3 million.
What is the status of this engagement?
We started working together in January 2014, and it’s ongoing.
What evidence can you share that demonstrates the impact of the engagement?
Iterators has helped us generate around $7 million in software sales.
How did Iterators perform from a project management standpoint?
Project management has not been their strength early on, but they’ve become better. We’ve had the same dedicated team for many years now. We use Trello, Jira, and Slack to collaborate.
Overall, they have very solid communication skills and a high bar for excellence.
What did you find most impressive about them?
Iterators has a genuine share of commitment to our success. They believe in our mission — they’ve expressed genuine enthusiasm for our business.
Are there any areas they could improve?
They’ve been maturing with our team, and they’ve already addressed most of our issues about their work. Still, they can QA their work before submitting it to us.
Do you have any advice for potential customers?
Treat them like a core part of your team, and be in daily communication with them. Document your expectations and requirements. Remove any ambiguity that can cause confusion.
the project
Mobile App Dev for Innovative Intelligent Platform Company
"The Iterators team members became trusted friends to me."
the reviewer
the review
The client submitted this review online.
Please describe your company and your position there.
I'm founder and CEO Helping Hand powered by adicctions.ai Helping Hand is an innovative intelligent platform that supports the treatment of alcohol addiction. Therapists working with the platform are supported by an Artificial Intelligence that predicts addiction relapse. We are the only solution of this kind in Europe.
For what projects/services did your company hire Iterators, and what were your goals?
The scope of tasks that I set for the team:
1. Market analysis
2. UX project
3. UI project
4. Development of android and iOS mobile applications
5. Development of a management panel of therapists
How did you select this vendor and what were the deciding factors?
I chose Iterators after an analysis of the supplier market and recommendations. What convinced me was a comprehensive approach to the project, professional advice and a very flexible approach to parallel work. I wanted the UX / UI / Development / Database competences to be in one team.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
The works were performed comprehensively. After I prepared the brief, the team prepared a technical feasibility study. We did market research, designed mock-ups (UX / UI), got a server recommendation, participated in every stage of the work, received support in publishing the application, and implemented analytics. We worked in sprints and applied the lean methodology.
How many people from the vendor's team worked with you, and what were their positions?
On the mobile apps development side, there were 2 android and 1 iOS dev. 3 people worked on the backend. 2 UX designers. 1 PM manager.
Can you share any measurable outcomes of the project or general feedback about the deliverables?
We provide a personalized solution for intelligent digital therapy in a subscription system, helping to cure addiction and supporting the therapy of mental health problems. We offer all forms of communication (chat, video, telephone conversation) though a dedicated application. We provide 24/7 access to a closed community that providers strong supports and motivates.
We offer the possibility of remote work for therapists (marketplace) supporting them with AI-driven tools for analysis and dedicated questionnaires for patients - the SUPERTHEARAPIST panel
Describe their project management style, including communication tools and timeliness.
We manage through Jira, Slack, and Zoom. Miro as well to collaborate on complex workflows.
What did you find most impressive or unique about this company?
The Iterators team members became trusted friends to me.
Are there any areas for improvement or something they could have done differently?
No. They are truly excellent to work with.
the project
Mobile App Dev for Management Consulting Firm
"I am grateful for working with Iterators, it saved us time and money."
the reviewer
the review
The client submitted this review online.
Please describe your company and your position there.
Weekly.pl provides micro learning and communication solution for large, dispersed teams of frontline employees. We deliver platform in SaaS model and complementary services: consulting and content creation.
For what projects/services did your company hire Iterators, and what were your goals?
We wanted to develop mobile app which will provide optimised experience for frontline employees.
How did you select this vendor and what were the deciding factors?
We interviewed 3 vendors which developed for us projects in the past. We have chosen one with the best range of services and cost.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
We started with the list of requirements and in first step we redesigned previous version of the app together with Iterators UX/UI experts. We decided to develop new version in React Native, and Iterators delivered functionalities in four major releases from June to September.
How many resources from the vendor's team worked with you, and what were their positions?
- Project Manager
- UX Expert
- UI Expert
- 2 Developers (1 Senior, 1 Junior)
Can you share any measurable outcomes of the project or general feedback about the deliverables?
We implemented already new version of the app to majority of our customers, and we have very positive response in both design and quality areas. New App is much more stable, more consistent between iOS and Android and works faster.
Describe their project management style, including communication tools and timeliness.
We synchronised our sprints, on Iterators worked with us on our task manager built in Notion, we stablished connection via Slack for everyday communication.
What did you find most impressive or unique about this company?
Most valuable was proactive approach, understanding the reasons for our functional request. They were able to criticise some of them and provide better substitutes. I am grateful for working with Iterators, it saved us time and money.
Are there any areas for improvement or something they could have done differently?
more detailed timesheets will allow us better alocate costs to features.
the project
Mobile App Development for Ride Aggregator Company
"We have over 200,000 downloads so the quality of the app speaks for itself."
the reviewer
the review
A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.
Introduce your business and what you do there.
I’m the founder and CEO of a technology company that has a consumer app that aggregates public transportation and black card companies.
What challenge were you trying to address with Iterators?
We wanted to essentially build our technology from scratch.
What was the scope of their involvement?
Iterators is providing us with a full suite of development from architecting the platform, to designing and developing the front- and back end. We predominantly use Scala for the backend and React Native for iOS and Android.
The app has a lot of API integrations with different ride companies such as Uber and Lyft. The entire experience is being developed by Iterators, and they’re implementing a feature that can pull each company’s pricing, wait time, and booking flow.
Moreover, they’re providing us with a slew of other services such as testing, hosting, and product maintenance — we’re hosting the app on AWS and other cloud technologies.
What is the team composition?
Our main points of contact are Lukasz and Jacek (Managing Partners), and over the course of five years, we’ve probably worked with around 10 people.
How did you come to work with Iterators?
We had a colleague who had previously worked with them prior to our relationship. They brought Iterators on board and they’ve stayed with us since.
How much have you invested with them?
So far we’ve invested around $500,000.
What is the status of this engagement?
Our ongoing partnership started in October 2015.
What evidence can you share that demonstrates the impact of the engagement?
So far, we have over 200,000 downloads so the quality of the app speaks for itself.
How did Iterators perform from a project management standpoint?
I’m pretty hands-on and I do a lot of the management myself, so we communicate with them closely on a daily basis. We typically use Slack and JIRA as our main platforms for interaction.
What did you find most impressive about them?
We’re very impressed with their engineering capabilities.
Are there any areas they could improve?
If there’s one thing they need to improve on, it’s their design work.
Do you have any advice for potential customers?
I would suggest having a counterpart work closely with their team to stay in touch and push the process forward.
the project
App Design & Development for Career Transition Firm
"Iterators delivers an exceptional experience, exceeds expectations, and creates truly elegant products."
the reviewer
the review
The client submitted this review online.
Please describe your company and your position there.
I'm the founder of a startup working on a career transition app.
For what projects/services did your company hire Iterators, and what were your goals?
I hired Iterators to augment the design, development, and maintenance for several key, end-to-end processes and functionalities.
How did you select Iterators and what were the deciding factors?
Discovered Lukasz initially through Toptal, and then realized a friend had also used them. They were highly recommended through both channels.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
I took a rough idea and concepts to Iterators, and then worked seamlessly with their project managers, designers, and developers to make the idea come to life. Sketch, Miro, Invision, Jira, Gitlab, Slack and Zoom all played important roles.
How many people from the vendor's team worked with you, and what were their positions?
There were 4 people on the core team - PM, designer, FE, BE. Also, worked with the broader design team, testers, and artists.
Can you share any measurable outcomes of the project or general feedback about the deliverables?
Iterators delivers an exceptional experience, exceeds expectations, and creates truly elegant products. It's support led to additional funding and growing user traction.
Describe their project management style, including communication tools and timelines.
We manage through Jira, Slack, and Zoom. Miro as well to collaborate on complex workflows.
What did you find most impressive or unique about this company?
The Iterators team members have become like trusted trusted friends to me.
Are there any areas for improvement or something they could have done differently?
No. They are truly excellent to work with.
The client has received a lot of positive feedback from customers about how the feature will positively help them. The Iterators team was very flexible — they communicated daily on Slack and had weekly meetings. Iterators was responsive and timely, which fostered a positive working relationship.