WristChatUI

A private, bring-your-own-key AI chat client for iPhone and Apple Watch. Speaks OpenAI- and Anthropic-compatible APIs.

• Download: Search for WristChatUI on the App Store.
• Website / Support: https://HaiGe120.github.io/WristChatUI/support.html
• Privacy Policy: https://HaiGe120.github.io/WristChatUI/privacy.html

Features

• Real Apple Watch app with native composer, dictation, and conversation history
• Multi-provider: any OpenAI- or Anthropic-compatible endpoint (OpenAI, Anthropic, MiniMax, Open WebUI, custom gateways)
• Apple Watch complications and Smart Stack widget for one-tap new chats
• Siri Shortcuts integration on iPhone and Watch
• iCloud Drive backup and restore of all conversations (opt-in)
• iOS Keychain for API keys, SwiftData for chat history, no telemetry

Requirements

• iOS 26.0 or later (iPhone)
• watchOS 11.0 or later (Apple Watch)
• An API key for at least one OpenAI- or Anthropic-compatible provider

Building

The project uses xcodegen; the .xcodeproj is generated from project.yml.

brew install xcodegen
xcodegen generate

For simulator work, use the wrapper script (see AGENTS.md for why):

scripts/sim.sh boot        # build, install, launch, screenshot
scripts/sim.sh teardown    # terminate + shut down

For direct xcodebuild against a real device, sign with your team and archive the WristAssistant scheme.

Privacy

WristChatUI does not collect analytics, telemetry, or any data on the developer's servers. API keys live in the iOS Keychain, conversations in a local SwiftData store, and the only network calls are to the endpoints you configure. See the Privacy Policy.

License

Source-available for noncommercial use. Commercial use requires prior written permission. See LICENSE.