AdaptKey 1.2.97
Privacy-first Android keyboard that learns your typing style. Fully offline.
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35.52 MB · AdaptKey.apk
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About AdaptKey
AdaptKey is an adaptive Android keyboard (IME) that learns how you type - built for privacy first.
Provably offline. No phoning home.
AdaptKey has no internet permission at all. This is not a promise you have to take on faith - it is enforced by Android and verifiable by anyone: there is no INTERNET permission in the app manifest, so the operating system makes it impossible for the app to open a network connection. No telemetry, no analytics, no "anonymous usage statistics", no ads, no cloud sync.
* No internet permission - kernel-enforced, not a checkbox you trust.
* No storage permission - the optional local AI model is imported through the system file picker, which grants access to just that one file.
* Everything runs on-device. Dictionaries, autocorrect, language detection and the optional mini-LLM all execute locally.
* Free software, licensed under GPL-3.0-or-later - audit every line yourself.
Features
* Gboard-style QWERTZ/QWERTY layout with freely configurable key proportions (space bar, comma, full stop, backspace), a persistent number row, and per-key long-press secondary symbols.
* Learns your touch pattern. A per-key personal offset model adapts hit detection to how you actually tap; an optional calibration step seeds it.
* Smart suggestions and autocorrect from a personal on-device dictionary, with a stabilised suggestion bar, a "keep as typed" escape hatch, and one-tap post-commit undo.
* Real multilingual dictionaries as optional downloadable language packs (German, English and Greek bundled to start with, more to follow), with on-device language detection that switches the whole lexicon per language.
* Greek input with its own layout and accent long-press.
* German capitalisation done right: sentence starts, nouns vs. proper nouns, hyphen segments, the e-mail-salutation comma rule, abbreviations, and a configurable shift-grace window.
* Retroactive fixes: missed-space word split and spurious-space merge, driven by touch ambiguity.
* Gestures: swipe to delete a whole word, swipe down to dismiss, drag a suggestion to trash to blacklist it, word-end shift for casing/camelCase.
* Emoji panel with recents and a live keyword search (English and German).
* Optional on-device mini-LLM (opt-in, work in progress): when the on-device dictionary is uncertain, a small local language model can improve predictions. It is never bundled or downloaded by the app - you import it yourself via the system file picker, and it stays fully offline afterwards.
* Backup and restore your personal learned words, settings and blacklist as a single file.
AdaptKey is under active development. Feedback and bug reports are welcome on the source repository.
Provably offline. No phoning home.
AdaptKey has no internet permission at all. This is not a promise you have to take on faith - it is enforced by Android and verifiable by anyone: there is no INTERNET permission in the app manifest, so the operating system makes it impossible for the app to open a network connection. No telemetry, no analytics, no "anonymous usage statistics", no ads, no cloud sync.
* No internet permission - kernel-enforced, not a checkbox you trust.
* No storage permission - the optional local AI model is imported through the system file picker, which grants access to just that one file.
* Everything runs on-device. Dictionaries, autocorrect, language detection and the optional mini-LLM all execute locally.
* Free software, licensed under GPL-3.0-or-later - audit every line yourself.
Features
* Gboard-style QWERTZ/QWERTY layout with freely configurable key proportions (space bar, comma, full stop, backspace), a persistent number row, and per-key long-press secondary symbols.
* Learns your touch pattern. A per-key personal offset model adapts hit detection to how you actually tap; an optional calibration step seeds it.
* Smart suggestions and autocorrect from a personal on-device dictionary, with a stabilised suggestion bar, a "keep as typed" escape hatch, and one-tap post-commit undo.
* Real multilingual dictionaries as optional downloadable language packs (German, English and Greek bundled to start with, more to follow), with on-device language detection that switches the whole lexicon per language.
* Greek input with its own layout and accent long-press.
* German capitalisation done right: sentence starts, nouns vs. proper nouns, hyphen segments, the e-mail-salutation comma rule, abbreviations, and a configurable shift-grace window.
* Retroactive fixes: missed-space word split and spurious-space merge, driven by touch ambiguity.
* Gestures: swipe to delete a whole word, swipe down to dismiss, drag a suggestion to trash to blacklist it, word-end shift for casing/camelCase.
* Emoji panel with recents and a live keyword search (English and German).
* Optional on-device mini-LLM (opt-in, work in progress): when the on-device dictionary is uncertain, a small local language model can improve predictions. It is never bundled or downloaded by the app - you import it yourself via the system file picker, and it stays fully offline afterwards.
* Backup and restore your personal learned words, settings and blacklist as a single file.
AdaptKey is under active development. Feedback and bug reports are welcome on the source repository.
| Release info | Update on Oct 31, 2026 |
|---|---|
| Release notes | Changes since 1.2.93: • Gesture/long-press calibration for slow users: the space bar no longer swallows slow swipes and slow taps, swipe distances and the backspace repeat delay are adjustable, three input-tempo profiles (Standard / Deliberate / Quick) • Fixed text duplication after pasting into fast editors (composing-span race) • Double-tap backspace revert is now on by default on fresh installs • New Auto-capitalisation switch: off = words commit exactly as typed (no automatic sentence-start capitals) |
| Listing data | F-Droid |
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