Privacy-focused keyboard with AI enhancements
About this app
LeanType is a privacy-conscious, customizable open-source Android keyboard. Based on the robust foundations of AOSP and HeliBoard. LeanType (Standard) offers a hybrid experience: a private, secure offline core for everyday typing, with powerful AI capabilities available whenever you choose to enable them.
Key Features:
• AI Proofreading & Translation: Instantly fix grammar, rewrite text, or translate sentences using powerful AI. Choose between Gemini, Groq, or OpenAI-compatible backends.
• Floating Keyboard: Detach the keyboard into a draggable window for seamless multitasking and improved accessibility.
• Clipboard Power-tools: Search your clipboard history directly, enjoy visual previews, and undo accidental clip deletions.
• Screenshot Suggestions: Instantly paste recently taken screenshots directly from your keyboard suggestions.
• Custom AI Keys: Program up to 10 customizable toolbar keys with distinct AI behaviors (e.g., #editor, #proofread, #toneshift) to quickly transform your text on demand.
• Touchpad Mode: Swipe up on the spacebar to control your screen cursor like a trackpad.
• Split Toolbar & Suggestions: Dual-layer interface allowing simultaneous access to suggestions and utility keys.
Standard Features:
• Multilingual typing with auto-correction
• Import dictionaries from Gboard/Google
• Fully customizable themes (Colors, backgrounds, Day/Night integration, Material You dynamic colors)
• Customizable special layouts (NumPads, Symbol layouts)
• Glide typing support (Requires external library)
• One-handed mode and Split keyboard
• Backup & restore for all your settings and learned words
Privacy Policy: We believe your keyboard shouldn't spy on you. LeanType is fully open-source and respects your data. While this version includes Internet permission to support AI features, network access is only ever used if you explicitly provide an API key and actively trigger an AI request. Your keystrokes are never logged or sent anywhere without your direct action.
Built with ❤️ by LeanBitLab.
Licensed under GPL-3.0-only.
What's New in v3.9.5
Imported from the F-Droid repository index.
- - Added direct Switch Target IME feature to switch directly to another input method/subtype.
- - Added custom keycode (-10076) that can be assigned to toolbar keys (including long-press).
- - Track active custom layout index to properly restore custom layouts on alphabet/orientation changes.
- - Improved shift key behavior and action handling on custom layouts.
Version history
Jul 13, 2026 · 10.1 MB · Android API 23–35 · code 3950
Imported from the F-Droid repository index.
- - Added direct Switch Target IME feature to switch directly to another input method/subtype.
- - Added custom keycode (-10076) that can be assigned to toolbar keys (including long-press).
- - Track active custom layout index to properly restore custom layouts on alphabet/orientation changes.
- - Improved shift key behavior and action handling on custom layouts.
SHA-256 66e84152ecffd83282eec4f1cb4794ef317931afb9810fb09197e55ba560d4ef
Jul 11, 2026 · 10.1 MB · Android API 23–35 · code 3940
Imported from the F-Droid repository index.
- - Fixed swipe gesture OOM crashes via packed coordinates & sequential word streaming.
- - Blocked blacklisted words from history, suggestion cache, and gesture index.
- - Fixed automatic shift text selection bug.
- - Added text expander sequential placeholders & settings backup integration.
- - Added dynamic secondary layouts (custom1-5) with deletion option.
- - Added long-press deletion of suggestions with window crash fixes.
SHA-256 42c51dc47b2ed8bcd89e379e04e52959a58f8167df61128203f56a72c5d9b2fe
Jul 10, 2026 · 10.1 MB · Android API 23–35 · code 3930
Imported from the F-Droid repository index.
- - Query and suggest personal dictionary words as next-word predictions before typing.
- - Same-language variant dictionary fallbacks (e.g., en_IN fallbacks to en_US/en_GB main).
- - Optimizations and fly-over accuracy improvements in pure-Java gesture engine.
- - Toggle to show/hide download dict button in toolbar.
- - Clean up redundant links on download page.
SHA-256 df0528940c8277db48193187c9328c38fb4eb79ef72e5f526549c7e8a905bbf3
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.leanbitlab.leantype is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 3.9.4 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall LeanType first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of LeanType, and a listing is removed when the evidence for it stops holding up.
Get LeanType
Every source we list for com.leanbitlab.leantype is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
66e84152ecffd83282eec4f1cb4794ef317931afb9810fb09197e55ba560d4ef
Signing certificate
ac7360ae311a36f2cc1caf1dad4848e18e191c55aaf128838fc34c92c6838016
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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