Developer

Stefan Sigl

Stefan Sigl has 3 apps on Indie Apps, in Games and Health & Fitness. All 3 are free to download. The first, Tunnel Logic, came out in March 2025. Listed here since September 2026. Last updated 1 November 2026. Browse more developers.

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Tunnel Logic
Stefan Sigl
A logic puzzle where you draw one tunnel from entrance to exit on a 10x10 grid, guided by the numbers along the edges.
Games
WorkoutBunny: Workout Tracker
Stefan Sigl
Plan your own exercises, set repeating schedules and reminders, log your reps and watch a bunny reflect your progress.
Health & Fitness
Color This: Kids Coloring Book
Stefan Sigl
An ad-free coloring book for kids aged 2 to 5, with dinosaurs and unicorns, several brushes, and free drawing.
Games

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Questions about Stefan Sigl

What apps has Stefan Sigl made?

3 are listed on Indie Apps: Tunnel Logic, WorkoutBunny: Workout Tracker and Color This: Kids Coloring Book. They are in Games and Health & Fitness.

Are Stefan Sigl's apps free?

Yes. All 3 of Stefan Sigl's apps on Indie Apps are free to download.

When did Stefan Sigl release their first app?

Tunnel Logic came out on the App Store in March 2025. The newest listed here, Color This: Kids Coloring Book, came out in September 2026.