LeanType

LeanType

Privacy-focused keyboard with AI enhancements

Keyboard & IME

Download (12 MB)

Screenshots

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Description

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.

What’s new (4.2.0)

- Offline Camera OCR & Screenshot Extraction: Live in-keyboard camera viewfinder and automatic screenshot chip with advanced formatting options (casing, join styles, punctuation, dehyphenation).
- OCR Plugin Lifecycle Fixes: Dynamic ClassLoader invalidation and native library reloading improvements.
- Inline Math Suggestions: Real-time math expression evaluation on typing '=' with instant suggestion strip answers and one-tap replacement.
- Sound Packs & Plugins: Dedicated Sound screen under Plug

Versions

Version Date Size Requires Android Download
4.2.0 current
e633bddd9211c6d0…
 2026-09-07 12 MB API 23
4.1.8
3ed40e62a3885176…
 2026-09-05 11 MB API 23
4.1.5
eb8036ea4d3e1576…
 2026-08-27 11 MB API 23

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Internet accessSend and receive data over the internet.
  • READ_USER_DICTIONARY
  • Run at startupStart automatically after the device is switched on.
  • VibrationControl the vibration alert.
  • WRITE_USER_DICTIONARY
  • Read contactsAccess the address book.
  • Read storageRead files on the device storage.
  • PhotosRead images from the media library.
Show 8 more permissions
  • MicrophoneRecord audio.
  • Audio settingsAdjust volume and audio output.
  • Display over other appsDraw content on top of other apps.
  • CameraTake photos and videos.
  • Prevent sleepingKeep the device from going to sleep.
  • Network stateCheck whether and how the device is connected.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • leantype.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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