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Zahlenschatzjagd

Maths practice for school years 1 and 2 – offline, ad-free, in German
New in version 2.1.0
Neu auf der Rechnen-Insel: das Einmaleins. Kinder üben gezielt einzelne Reihen von der 2er- bis zur 10er-Reihe – erst der Reihe nach aufsagen, dann durcheinander. Für jede Reihe gibt es eigene Schatztruhen, und der Übungsstand zeigt, welche Reihe schon sitzt. Außerdem lässt sich bei Häkchen und Schaltern jetzt die ganze Zeile antippen, nicht nur das kleine Feld daneben.
Zahlenschatzjagd ("number treasure hunt") lets children in their first two school years practise maths on their own – offline, without ads and without a single permission. It is made for children who cannot read yet: pictures and a voice that reads everything aloud show the way.

The app and all its texts are in German only. It follows the maths curriculum for primary schools in North Rhine-Westphalia and speaks to German-speaking children and parents.

Exercises: addition, subtraction, multiplication and division up to 10, 20, 50 or 100, doubling, number walls, number bonds to 10, comparing numbers and finding neighbouring numbers. A treasure chest fills up for each exercise, from bronze to platinum.

For parents, behind a small sum or a PIN: what a child practised recently and how confident it is, a practice calendar, which exercises a child may use, sound and read-aloud settings, and a backup file of all progress for moving to a new device.

Several siblings can share one device, each with their own profile and progress. No permissions, no tracking, no account – all data stays on the device.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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  • Version 2.1.0 (20) suggested Added on Oct 27, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • io.github.glaside.zahlenschatzjagd.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 23 MiB PGP Signature | Build Log

    • New in version 2.0.3
    Die App ist zum Herunterladen deutlich kleiner geworden: rund 25 statt 32 MB. Für Kinder und Eltern ändert sich sonst nichts, der Fortschritt bleibt beim Aktualisieren erhalten.
  • Version 2.0.3 (19) - Added on Oct 16, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • io.github.glaside.zahlenschatzjagd.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 23 MiB PGP Signature | Build Log

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