Independent app studio

Building apps
people actually
reach for.

Sidus is a one-person studio based in the Netherlands, focused on crafting thoughtful digital products. Each app starts from a genuine need โ€” something worth making, done carefully.

Products
๐Ÿฆ
Gellog
Live

A gelato logging app for people who take their ice cream seriously. Log flavours, discover salons, follow friends, and build a personal gelato passport.

Visit gellog.app โ†’
More coming
About

Small studio,
deliberate work.

Sidus is built around the belief that good software comes from caring about the problem more than the output. Every product here starts small โ€” with a clear use case, real users, and a genuine reason to exist.

Based in the Netherlands. Registered at the KvK. Building in public, one app at a time.

Thoughtful by default Every decision โ€” from feature scope to visual detail โ€” gets considered. Nothing ships that isn't ready.
User first, always Products are built around genuine needs. No dark patterns, no bloat, no unnecessary complexity.
Independent & sustainable Sidus is self-funded and intentionally small. Growth follows quality, not the other way around.