We work with innovative VC-backed startups as well as established companies in:
- 🏥 healthcare: Medicai (Plug&Play company), Bold Health (Plug&Play company), Eupnoos, and many more to deliver secure and compliant software solutions that improve patient outcomes and streamline clinical flows
- 🏛government & administration: UNICEF, The World Bank, USAID, and others to increase their impact in global projects using innovation powered by modern technologies.
- 🏫 education: EdXP, I-FIKR, Alux, and others to improve accessibility to an excellent education and modern, digital, teaching methods and methodologies
- 🏦 finance: Ernst&Young, Bankata, Nicola Wealth to deliver secure, scalable solutions and improve financial literacy through technology.
We have a product-centric approach to development, we specialize in:
- Product Strategy & Design (market, vision, positioning, user research, user experience design, user interface design)
- Data (AI/ML, data science, data manipulation, data visualization, databases)
- Software Engineering (mobile and web apps, backend, frontend, infrastructure)
- Product Marketing (user acquisition, user retention, analytics, data-driven decisions)
We know how to build products at scale, used by millions globally.
What our clients say about our work:
"Considering the experience we have in working with Atta Systems, we strongly recommend them for the development of quality software, ensuring all stages of the software development process including definition, design, coding, code control and reviews, testing, release management, and product integration."
Voica Tomus, Child Protection Specialist, UNICEF
"Atta Systems integrates well into our company; they feel like part of our team. Atta Systems follows the project timelines and responds quickly to the client's messages via Slack and Google Meet. They work in two-week sprints, have biweekly meetings, and use Jira to report on progress."
Jossy Onwude, CTO @ Bold Health, UK, a Plug&Play company
Focus Areas
Service Focus
- Software Development
- Web Development
- App Designing (UI/UX)
- Web Designing (UI/UX)
- Big Data & BI
Client Focus
- Medium Business
- Small Business
- Large Business
Industry Focus
- Financial & Payments
- Healthcare & Medical
- Education
Atta Systems Executive Interview

My role in the company is to facilitate growth. We grow on several dimensions - we grow professionally as a team, grow our customer base, and grow our team. We are inspired by great companies like Google, Facebook, Spotify that managed to grow while maintaining amazing service delivery standards.
Our team consists of hand-picked thoughtful professionals. We have product managers, product designers, software engineers, Q&A engineers, and product marketing specialists. We put a lot of effort into recruiting the smartest and brightest people out there. We look for interesting personalities that would complement well with us.
This impacts the way we communicate internally, how we do project management, and how we formulate each and every task. It creates an enormous amount of value for our clients.
Most of our customers stay with us after we start working together. UNICEF has been working with us for five years now, Medicai has been working with us for the last three years, and we have other examples too. Right now, we have 60% repetitive customers and 40% new customers. We have been focusing on growing our customer base in the last year.
We start the analysis from the target market and the problem that the app wants to solve. We then create a list of functionalities, and from there, we estimate what is needed technically to achieve it.
We have very productive frontend technologies like React Native and Flutter now for the frontends and really fast to deploy and easy-to-use Backend-as-a-Service technologies like Firebase or Parse Server that make it really easy to develop small to medium-sized apps.
The Hybrid approach is amazing, especially for utility apps; it offers amazing advantages like a single codebase for both operating systems, smaller maintenance costs, faster development.
Native, on the other hand, offers you the opportunity to make the UI of your mobile apps really shine and take full advantage of the hardware platforms. It works really well for games, immersive experiences. It is also a good idea to go for Native if you hope to be showcased by Apple or Google on their app stores.
The first discussion is Hybrid (React Native or Flutter would be my go-to choices now) vs. Native (iOS and Android). I would choose a Hybrid approach for utility apps. You gain so much by going Hybrid- smaller codebase, fewer bugs, better maintainability. I would go for Native if marketing on App Store/Google Play is a must, and the end-user experience needs to be amazing, needs to stand out. Types of apps would be games, immersive experiences, experiences that need to interact well with the hardware or the low-level SDK’s of the operating systems.
- Size of the technical problem: users that the app addresses, other data that impacts the dimension of the problem
- The complexity of the user flows
- Integration with other systems
2019: Smallest projects were $10,000. The largest project was $200,000.
It seems that the subscription model really caught up in the last couple of years. If done right and if it makes sense, it is really powerful from a business perspective.
Atta Systems Clients & Portfolios
Key Clients
- The World Bank
- UNICEF
- USAID
- Ernst&Young
- Medicai
- Bold Health
- Eupnoos
















Atta Systems Reviews
- All Services
- Software Development
- App Designing (UI/UX)
- Web Designing (UI/UX)
- Relevance
- Most Recent
- Rating: high to low
- Rating: low to high

Proactive, professional, high quality work within budget. Love this team and will continue working with them!
Review Summary
patients suffering from IBS. We already had the app live when we engaged with
Atta.
Our app needed quite a bit of performance improvements as well as
improvements on the user flows available within the app. We needed React
Native experts that could takle our challenges.
Atta has amazing tehnical expertise. Then, they also have extensive domain
expertise (healthcare).
After we started working together, we also learned that they have a really high
level of empathy for their customers. They try to understand our struggles, our
problems and always adapt. They are also great communicators, they
encourage their whole team to communicate with us to make the feedback loop
shorted during the development cycle.
They are fast, they deliver amazing quality. Highly recommend.
What is it about the company that you appreciate the most?
Quality, price, timely delivery, partnership & teamwork, and helping us think strategically around product dev priritisation
What was it about the company that you didn't like which they should do better?
At some point we almost overshoot the budget, but the team was great to flag when we needed to prioritise features to stay within budget
All was smooth, we had a great experience and were glad we worked with Atta

We appreciate the proactivity and flexibility shown by Atta Systems
Review Summary
suffering from digestive health problems. Patients have access to personalized care pathways
that cover every need from diagnostic to chronic or acute management.
Together with Atta, we set out to develop the whole technical infrastructure, including:
the backend built on top of AWS cloud services and infrastructure
the patient web app
the patient mobile app (for iOS and Android)
the clinician web app
the administration management interface
Atta managed the whole process of development, kept us informed and in the loop.
What makes Atta stand out is a great mix of incredibly knowledgeable engineers and domain
expertise (healthcare) that allows them to understand the audience of their products.
Working with Atta was really easy, we recommend working with them.
What was the project name that you have worked with Atta Systems?
Care platform for chronic conditions
What is it about the company that you appreciate the most?
They were also very flexible with the approach and really mindful about our resources and timeline
We appreciate the most the proactivity of the whole Atta team.
What was it about the company that you didn't like which they should do better?
Not really, everything went really smooth for us to be honest

The perfect partner to bring your ideas to life!
Review Summary
What is it about the company that you appreciate the most?
The agency shows a great deal of knowledge and is quite flexible with great communication skills.

Good Communication
Review Summary
What is it about the company that you appreciate the most?
Commitment and communication
What was it about the company that you didn't like which they should do better?
Stronger control of the full development system.

Great experience!
Review Summary
Professional & Friendly Service
Review Summary
What is it about the company that you appreciate the most?
Engagement, Strategic Thinking, Creativity

Great experience with Ab4 Systems!
Review Summary

Excellent experience, from analysis to deployment
Review Summary
What is it about the company that you appreciate the most?
On a human level, I love interacting with the people from AB4, as I am not a software developer but we talk the same language. On a technical level, I appreciate the fact they have a solution for everything, which from a business pov is excellent.
What was it about the company that you didn't like which they should do better?
Nothing comes to my mind, not to suggest they’re perfect, but they fullfiled my development needs to the full.

AB4 for Owlight
Review Summary
ANIMEST
Review Summary
What is it about the company that you appreciate the most?
Even though we had tough time constraints, the AB4 Systems managed to deliver an amazing app for both platforms. Our users can now buy tickets and see festival information from their own pockets. I highly recommend working with AB4, they are very professional

Heritage mobile app
Review Summary
What is it about the company that you appreciate the most?
Great communication, willingness to find solutions.

A very smooth collaboration
Review Summary

One truly visionary tech company - highly recommend
Review Summary
One of our client contracted us to develop a mobile app that connects your phone to your car computer and gathers some specific information in order to predict recurrent behaviour of each driver. After a selection of 3 software companies, we decided to hire AB4 Systems for the technical and development part of the app. AB4 Systems has a lot of expertise in the AI software programming and their approach mixed with our design thinking process was the perfect team for the project.
What we can underline is the flowless communication and building together on each idea that came up during the development. Their project manager had very good communication skills and understood all the challenges of the app.
Very proactive and innovative team.
What is it about the company that you appreciate the most?
Proactivity

Outstanding performance
Review Summary
They kept us informed at each stage and we had a very good symbiosis. Their availability for our last-minute changes was amazing !
We will definitely recommend them for future work !
What is it about the company that you appreciate the most?
Quality of the application delivered - very small number of bugs Availability to invest time for coming with improvement ideas Communication - fast and documented replies
What was it about the company that you didn't like which they should do better?
I cannot think of something negatively about them.

Best tech partner we ever had
Review Summary
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