Quill: AI Writing Assistant

Paste any text and Quill rewrites it on your device — fix grammar, change tone, shorten or summarize. Unlimited, offline, your words never leave your phone.

Quill is a private AI writing assistant that runs entirely on your iPhone. Paste any text and rewrite it instantly — fix grammar and spelling, change the tone, make it shorter, or summarise it. No account, no cloud, no limits.

Unlike cloud writing tools that upload everything you type, Quill works fully offline and processes your words only on your device — so your messages, essays and ideas stay completely private.

WHAT YOU CAN DO

• Improve clarity, flow and word choice in one tap
• Fix grammar and spelling
• Switch tone — formal or casual
• Shorten or summarise long text
• Works in many languages

WHY QUILL

• 100% on-device AI — works fully offline, anywhere
• Private by design — your text is never uploaded or tracked
• Unlimited rewriting — no per-word fees
• No account, no cloud

MEMBERSHIP Quill is a paid app. Start with a 3-day free trial, then $4.99/week — or unlock Quill forever with a one-time Lifetime purchase. Subscriptions auto-renew until cancelled; manage or cancel anytime in your Apple account settings.

Terms: https://bestpaid.app/legal/terms Privacy: https://bestpaid.app/legal/privacy