BLUECOSMIUM

We build iOS apps: precision tools for engineers, utilities for ordinary days, and games meant to be played slowly.

Emission band Visible blue · 400–500 nm

What we build

Reference-grade calculators derived from published standards, verified against the source tables rather than secondary sources.

Small apps that remove a specific, recurring friction from a day — and then stay out of the way.

Short, quiet games. No timers pushing you forward, no economy asking for your attention.