Synapse Notes vs Quill Keyboard

Synaps Notes is a private, on-device note app built for local AI. Write and organize notes directly on your iPhone. Chat with your own notes and documents using local AI models. Import PDFs, images, and text files with OCR support. Keep your data on-device by default, with optional Google Drive backup. No account is required to use the core features

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.