Over a decade of mobile, in the same hands.
A small studio of senior engineers — equally at home on iOS and Android. We ship apps we would want to use ourselves, end-to-end.
Nexus Software Systems is an independent mobile development studio based in Greece. We have spent over a decade writing apps — iOS and Android, equally — and we have grown into the backend and web work that real mobile products depend on.
We are intentionally small and deliberately senior. The engineer who pitches your project is the one architecting it, writing the code and answering the feedback after launch. No hand-offs between pre-sales and delivery, no outsourcing, no pyramid of juniors under a senior signature.
We ship both client work and our own products. BillPlex, our household expense manager for iPhone, is live on the App Store. Running our own product keeps us honest about what it really takes — from the first sketch, through store review, to the inevitable one-star review at 2am.
When native is the right call, we build native. When a brief calls for a cross-platform codebase, we say so and build it properly. The goal is the right app for you, not the stack we prefer.
Principles we actually live by
Right tool for the job
Native when it pays off, cross-platform when it fits. We pick the stack that fits your product, not the one we feel like writing that week.
Built in-house
No outsourcing, no agency pyramid. The engineer you meet is the one writing the code — and the one you email at 2am.
Honest timelines
We don’t promise two weeks to impress you and take eight. We scope realistically and say so when a change will cost more.
Long-term code
We write apps we would still want to maintain two years from now: boring, reliable, easy to change. Cleverness is a last resort.
Headquartered in Athens, working globally
We are legally registered in Greece as Nexus Software Systems L.P. We work with clients across Europe, the UK and the US — in English, and comfortably across time zones.