Flatstack
Overall Review Rating
4.1 (8 Ratings)
Overview
It is a web & mobile application development company. Specializing in staff development, their team of experts will work with you to balance your team so you can develop quickly. They believe in the level, connected world which has made it feasible to develop a globally. They have a distinct and skilled team that produces every year. All of their teams take on their individual personality and love what they do.
Services
- Mobile App Development
- Android App Development
- Cross Platform Development
- ERP Development
- iOS App Development
- Digital Strategy Management
- Cloud Governance
- MVP Development
- Cloud Migration Services
- Content Marketing
- Business Analysis & Consulting
- Web Development
Industries Served
Flatstack Reviews
Have a look at these client reviews on previously delivered projects.
Eoghan Fitzgerald
VP of Engineering - Shannon Tech Solutions LtdThe advice held up six months later when circumstances changed. That is good consulting.
The part of this project I had been most worried about was the integration work. Our system landscape is complex, some of the upstream APIs were barely documented, and one of our third-party vendors was notoriously slow to respond. This team documented what the upstream vendors could not, built resilience into the architecture where third-party reliability was uncertain, and delivered integrations that have worked exactly as specified since day one. I genuinely could not have asked for more.
Project summary
Telehealth demand had turned a pilot into a core service line faster than our technology could keep up. We needed a compliant, reliable platform and we needed it quickly.
Radosław Kowalczyk
Head of Development - Wisła Software Sp zooDesigned for actual user behaviour, not the persona document we thought was accurate
We handed them an aggressive deadline, a complex scope, and a client-side team that was stretched and not always available when they needed us. They handled that gracefully. They were precise about what they needed and when they needed it. Where they could proceed independently they did. The delivery landed on time in spite of the constraints we added. I regard that as strong evidence of genuine professional maturity — not just capability.
Project summary
Our internal team was committed to maintenance and could not absorb a new build of this complexity. An external partner was the only way to hit the timeline.
Nisha Pillai
Director of Engineering - GrowthBridge VenturesComplex project, zero drama. That is how you know the project management is real.
We went with a smaller team than we had originally planned for. I had concerns about whether the capacity would be sufficient given our timeline. Those concerns were unfounded. The team was focused, communication was constant, and the quality at each milestone review was consistent throughout. Smaller does not mean slower when the people are the right ones and this engagement proved that.
Project summary
Our LMS was built for classroom-first delivery. Hybrid learning had exposed every assumption it was built on, and student satisfaction data confirmed it.
Ji-Woo Park
VP of Engineering - Seoul Digital CorpOur QA partner treated product quality as a personal responsibility. It showed.
We handed them an aggressive deadline, a complex scope, and a client-side team that was stretched and not always available when they needed us. They handled that gracefully. They were precise about what they needed and when they needed it. Where they could proceed independently they did. The delivery landed on time in spite of the constraints we added. I regard that as strong evidence of genuine professional maturity — not just capability.
Project summary
Partner-level reporting required visibility into matter data that our current systems could not provide without significant manual extraction and aggregation.
Fatima Al-Suwaidi
Head of Digital Strategy - Gulf FinTech HoldingsProposal matched the outcome. That alignment is rarer than vendors acknowledge.
What set this team apart in practice was their engineering judgment — specifically, their willingness to tell us when our requirements were wrong and explain what to do instead. Not every vendor does that. The consultative element elevated the final output well beyond what our original brief described. We ended up with something better than what we had asked for, which is not a sentence I expected to be writing in a review.
Project summary
International expansion required multi-currency, multi-language, and multi-warehouse capability our current platform could not support without a rewrite.