Casual · Open source
Rechenzwerge
Daniel Waschke
Counting and math practice for preschool and elementary school.
Opens the official F-Droid page
About Rechenzwerge
Rechenzwerge is a practice app for preschool and elementary school kids.
Practice math
- Number range up to 10, 20, 100 or 1000
- Addition, subtraction, multiplication and division
- Practice sessions with 10, 50 or 100 tasks
- Mistakes are fine: try again or show the solution
Practice counting (for the youngest)
- Count quantities up to 5, 10 or 20 – no digits, no reading
- Answer by tapping dice faces instead of numbers
- Two modes: dice pips or counting board
Motivation
- Build your own mascot (colors, head, accessories) that cheers you on
And also
- No ads, no tracking, no permissions
- All practice data stays on the device
How to install Rechenzwerge
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open Rechenzwerge from your app drawer.





