What’s new
Tap a sticker: detail view with read-aloud and 'Make it my mascot'. Once the album is full there is a celebration, a gold badge and sparkly stickers. New: achievements for practice days and solved tasks.
Quick answer
Counting and math practice for preschool and elementary school.
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
Screenshots
How to install
- Download the APK from the button at the top of this page.
- Allow “Install unknown apps” for your browser or file manager only, not for every app.
- Open the downloaded file and confirm the installation.
- If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.
Data safety
- Every file is checked against its published SHA-256 before it is listed.
- Files are scanned for malware on every update.
- The permissions each app requests are listed on its own page.
- Read the full safety policy for how we test, flag, and delist files.
Frequently asked questions
What is Rechenzwerge?
Counting and math practice for preschool and elementary school.
Who develops Rechenzwerge?
Rechenzwerge is developed by Daniel Waschke.
Which Android version does Rechenzwerge require?
Rechenzwerge requires Android API 24 or later.
What is the current version of Rechenzwerge?
The synchronized F-Droid version is 0.1.58.
Which license does Rechenzwerge use?
The signed F-Droid metadata lists GPL-3.0-or-later.
Where is the source code for Rechenzwerge?
https://gitlab.com/DaWasch/rechenzettel-app
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