ChatAI
Private, on-device AI chat.
ChatAI lets you have intelligent conversations powered entirely by the on-device intelligence built into your iPhone. Your conversations never leave your device: no servers, no accounts, no data collection.
Download on the App StoreSupportPrivacy policy
Features
Completely private
Every response is generated on your iPhone. Nothing is sent to a server, and there is no account to create.
Chat history
All conversations are saved locally. Rename, organise and revisit past chats any time.
Fast and offline
Works without an internet connection, since everything runs on-device.
Voice dictation
Speak your message and it is transcribed on-device. Audio is never recorded or stored.
App Lock
Optionally lock the app behind Face ID, Touch ID or your passcode.
Siri, Shortcuts and the Action button
An “Ask ChatAI” action for Siri, Spotlight, the Shortcuts app and the Action button, with the answer still generated on your device.
No subscriptions
Free, with no hidden fees. It uses the on-device intelligence built into your iPhone at no additional cost.
Privacy
ChatAI collects no personal data. Conversations and chat history are stored only on your device, and the app makes no external network calls of its own. Read the full privacy policy.
Requirements
- iPhone 15 Pro, iPhone 15 Pro Max, or iPhone 16 series or later
- iOS 26 or later
- On-device intelligence enabled in Settings > Apple Intelligence & Siri
Get the app
ChatAI - On Device AI is free on the App Store. Download ChatAI. Questions or problems? See the support page.