Casual · Open source
LetterBox
Tobias Mueller
Learn letters with animal pictures: a simple, offline game for young children
Opens the official F-Droid page
About LetterBox
LetterBox is a game for young children who are learning their letters. It shows a picture, usually an animal, and three letters. Tap the letter the word starts with. Tap the picture to hear its name.
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.
What's new in 1.7.0
- Choose which letters to practise: all of them, the ten most common, or just one. - 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.
How to install LetterBox
- 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 LetterBox from your app drawer.



