Ultra Open Client

Your AI, right on your iPhone. Nothing goes to the cloud. Nothing leaves the device.
Ultra Open Client is a free, open-source chat app powered by Apple Intelligence. Ask questions, brainstorm ideas, draft a message, summarize a note — when you chat with Apple Intelligence, every response is generated locally on your iPhone through Apple's Foundation Models framework. No network calls. No account required to start.

• Private by design — on-device responses, zero network traffic during the chat.
• Sign in with Apple — keep your chats synced across your own devices through iCloud.
• Start in one tap — no account, no phone number, no email, no sign-up form.
• iOS 26 native — built in SwiftUI with Apple's new Liquid Glass design language.
• Truly free — no ads, no in-app purchases, no subscriptions, no trackers.
• Fully open source — Apache 2.0 licensed, with every line of code public on GitHub.

No telemetry. No analytics. No data collected by the developer. Apple Intelligence on-device generation requires iPhone 15 Pro or later running iOS 26 or later.