Lexo: Offline AI Keyboard

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In-app purchases

About this app

Lexo finishes your sentences. As you type, it predicts your next word — and the words likely to follow — so you tap less and write more.

Smart prediction usually comes at a price: the keyboard ships what you type to a server to do it. Lexo doesn't. The whole prediction engine runs on your phone, so suggestions are instant, work with no signal, and nothing you type ever leaves the device. You don't have to choose between a keyboard that's smart and one that's private. Lexo is both.

Predictions that keep up with you
• Predicts your next word and the phrase that follows, as you type
• Learns how you actually write — your names, your slang, your shortcuts
• Instant and fully offline; no server in the loop
• A personal dictionary that lives only on your phone

Private because of how it's built, not a setting you switch on
• Every prediction happens on-device — your keystrokes never leave the phone
• No accounts, no tracking, no analytics, no ads
• Your personal dictionary is yours alone, and never uploaded

Everything you expect from a keyboard
• Glide typing — swipe through the letters to write a word
• Quick switching between languages and layouts
• Emoji keyboard and clipboard history
• Light and dark themes with automatic day/night switching
• One-handed mode for larger phones
• Customizable key sounds, vibration, and gestures

Built on the open-source FlorisBoard project. Lexo is in active development, focused on one thing: making on-device typing genuinely faster and smarter. Your feedback shapes what comes next.

What’s new

What's new in this update:
- Behind-the-scenes updates to app libraries
- Stability and performance improvements