TidyType

Elevate your writing. On-device AI keyboard for Android — grammar, tone, translation and voice. Nothing ever leaves your phone. TidyType Keyboard is an Android keyboard with on-device AI rewriting. Type anything, then tap a chip to rewrite it in a different tone, translate it, or dictate it — all processed entirely on your phone. ✦ FEATURED CHIPS • Grammar — fixes spelling, grammar, and punctuation without changing your voice • Funny — rewrites text in a playful, light tone • Business — rewrites in a professional, polished tone • Translate — translates into 23 curated languages, with sticky one-tap repeat for your last target • Voice — tap to dictate; long-press to dictate AND translate in a single step (e.g., speak English, get Spanish) ✦ CUSTOMIZABLE Edit any built-in prompt, add your own custom chips, duplicate existing ones, import a chip from a JSON file someone shared. Up to 6 chips visible on the keyboard at a time, reorderable in Settings. ✦ PRIVATE BY DESIGN Everything runs on your phone. The Gemma 4 E2B language model (about 2.5 GB) is downloaded once from Google's official model repository when you first open the app, then used entirely offline. There is no analytics SDK, no crash reporting, no account, no server. The keyboard has no way to send what you type anywhere because the code that would do so does not exist in the app. Voice transcription uses the same model — audio is captured only when you tap the Voice chip, processed locally, and deleted immediately after. ✦ POWERED BY GEMMA The language model is Gemma 4 E2B, provided by Google under the Gemma Terms of Use. By downloading the model you agree to those terms; the in-app Settings screen shows the full license details. ✦ REQUIREMENTS • 6 GB RAM or more • 3 GB free storage for the model • Android 8.0 (API 26) or higher • 64-bit ARM processor (any phone from 2017 onward) • Internet connection for the one-time model download Tested on Samsung Galaxy S25 Ultra. Other modern phones should work but are not individually verified. ✦ PERFORMANCE On 6 GB+ devices with a modern GPU, AI responses arrive in 1-2 seconds and voice transcription is near-instant. If your device's GPU doesn't support our AI runtime, TidyType automatically falls back to CPU mode (5-7 seconds per response). You can manually switch backends in Settings → Advanced. ✦ FOSS UNDER THE HOOD Built on Google's LiteRT-LM runtime, AndroidX, Material 3, and Kotlinx Coroutines. Full open-source notices in Settings → Legal & open source licenses