LetterBox
- The feedback jingle is quieter, so it no longer drowns out the spoken name.
- The same picture no longer appears twice in a row.
- About now links to the issue tracker for feature requests; a long press opens it, so children cannot reach the browser by accident.
- Fixed the German, Italian, US, and Korean flags; Spain now shows the civil flag.
After a wrong answer, the same picture comes back so your child can try again. There are no scores, timers, or penalties.
Features
- Nine languages: English, German, French, Spanish, Italian, Polish, Brazilian Portuguese, Japanese (hiragana), and Korean (hangul). The language can be changed in the menu, independently of the system language.
- About 70 pictures, with several pictures for many letters, so rounds stay varied.
- Practise a selection of letters: all of them, the ten most common, or just one.
- Optional progress tracking: letters your child knows well come up less often. Progress fades gently after a few weeks without practice, so forgotten letters return.
- Works with a physical keyboard: press 1, 2, or 3, or the letter itself.
- The menu button can be hidden until the app is closed, so small hands do not change settings by accident. Press and hold the top-right corner to bring it back.
Privacy
LetterBox requests no permissions and has no internet access. There are no ads and no tracking. Progress is stored only on the device and is excluded from cloud backups.
- Author: Tobias Mueller
- License: GNU General Public License v3.0 only
- Issue Tracker
- Source Code
- Build Metadata
- Reproducibility Status
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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.
Download F-Droid-
This version requires Android 6.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 5.8 MiB PGP Signature | Build Log
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This version requires Android 6.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 5.8 MiB PGP Signature | Build Log
-
This version requires Android 6.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 5.7 MiB PGP Signature | Build Log
- Optional progress tracking: letters your child knows well come up less often, and progress fades gently after a few weeks without practice. It is stored only on the device.
- Fixed a crash when opening About on Android 6.
- The chosen language is remembered and also shows up in the system's per-app language settings.
- The menu button can be hidden for the current session; a long press brings it back.
- Keyboard support for Android desktop and ChromeOS: number keys 1, 2, and 3 or the matching letter key pick an answer.
- Fixed buttons staying pressed after a multi-touch tap.