Independent apps & experiments

A little useful.
A little playful.

A collection of Android apps and web experiments. For learning, keeping track, and taking a break.

In focus

01 / Featured project

Android · Personal health

A clearer picture of your days. Record pain, keep track of medication, and look back on patterns over time.

Pain Tracker / App preview

Learn German offline, from A1 to C1.

A water sort puzzle with 1,170 levels and a real-time river.

Thirty-six clubs. Four pots. Your own league-phase draw.

Language learning, everyday tools, and games to share. Each project has its own home, with details and documentation when you need them.