ChatNPU vs Quill Keyboard

ChatNPU Keyboard rewrites your text instantly in the style you choose. Select an identity, tap once, and you are offered a new version powered by on-device AI. Built for privacy, your typed and rewritten text stays on device. ChatNPU is available on supported devices with the required on-device AI capabilities.

Quill Keyboard puts an AI assistant right inside your keyboard. Select or type text and tap an action — Summarize, Explain, fix Grammar, make it Formal or Casual, Shorten, Look Up a word, find better wording with Thesaurus, or translate between German and English — without leaving the app you're in. Bring your own Anthropic (Claude) API key: your text is sent only to Anthropic to perform the action you choose. Nothing is collected, sold, or used for tracking, and your key is stored privately on your device. ACTIONS • Summarize — condense long text • Explain — plain-language explanation • Grammar — fix spelling, grammar, and clarity • Formal / Casual — change the tone • Shorten — make it concise • Look Up — quick definition • Thesaurus — stronger word choices • DE → EN / EN → DE — German–English translation FEATURES • Works in any app via the system keyboard • Customizable Quick row and My Actions tab • English and Persian keyboard layouts • Results appear inline or in a dismissable panel Requires "Allow Full Access" so the keyboard can reach the AI service and act on your selected text.