Over a decade of software, in the same hands.
A small studio of senior engineers — at home across apps, web and backend. We build software we would want to use ourselves.
Who we are
Independent studio
Athens, Greece
10+ years · mobile, web & backend
Nexus Software Systems is an independent studio in Greece. We came from mobile — over a decade of iOS and Android — and grew into the websites and backends that real products depend on.
We are intentionally small and deliberately senior. The engineer who pitches your project is the one writing the code and answering the feedback after launch — no hand-offs, no outsourcing, no juniors under a senior signature.
We build client work and our own products — like BillPlex, our household money manager for iPhone and Android, with Mega Cup Glory out now too. Running our own keeps us honest about what it really takes.
How we work
Scope it honestly
We tell you what is realistic, what it will cost, and what we would cut — no padded timelines to win the pitch, no surprises halfway through.
Build it in-house
The senior engineer who scoped your project is the one writing the code. You get demo builds on your own phone every couple of weeks, not a black box that opens at launch.
Ship it and stay
We handle App Store and Play Store submission, then stick around. The inevitable one-star review at 2am is ours to answer too.