EXTENSION.app vs WristChatUI

EXTENSION.app is the all-in-one extension app for iOS, iPadOS, iMessage, watchOS, macOS, tvOS and visionOS. ■■■ EXTENSION.app for iOS and iPadOS ■ In-App Web Browser: - Automatic activation of "Picture-in-Picture" video mode on supported websites. - Simultaneous playback of "Picture-in-Picture" video with other video apps, without sound. ■ In-App Video Picker: - Selection of video files from Files app, iCloud Drive and On My Device directories. - Selection of music videos from Music Library. - Selection of videos from Photo Library. - Simultaneous playback of "Picture-in-Picture" video with other video apps, with or without sound. ■ Share extensions: - Player > Picture-in-Picture: extension activates Picture-in-Picture mode for videos. - Player > Picture-in-Picture Mix: extension activates Picture-in-Picture mode for videos to play simultaneously with other video apps, without sound. - Player > Fullscreen: extension activates Fullscreen mode for videos. - Player > AirPlay: extension activates AirPlay for sharing video to another device. - Player > Background Audio extension plays video in background. - Supported apps: Safari, Photos, Files, Messages and other apps with a Share button. ■ Safari browser extensions: - Player > Picture-in-Picture: extension activates Picture-in-Picture mode for videos. - Player > Picture-in-Picture Mix: extension activates Picture-in-Picture mode for videos to play simultaneously with other video apps, without sound. - Player > Fullscreen: extension activates Fullscreen mode for videos. - Player > AirPlay: extension activates AirPlay for sharing video and audio to another device. - Player > Background Audio extension plays video and audio in background. - Player > Mute: extension mutes or unmutes video and audio. - Player > Loop: extension loops video and audio playback. - Player > Skip Forward and Backward: extension skips forward or backward 15 seconds of video and audio. - Player > Next: extension skips to the next video and audio, or skips to the end of video and audio. ■ Shortcuts: - Collection of Shortcuts to launch X.app from Home Screen, Action Button, Tap Back or automation. - "Browser" shortcut to open In-App Web Browser with On Screen website, Clipboard or list of suggested websites. - "Browser > Favorite" shortcut to open favorite website. - "Files" shortcut to open Files picker. - "Photo Library" shortcut to open Photo Library picker. ■■■ EXTENSION.app for iMessage - Activation of "Picture-in-Picture" video mode via Copy&Paste and Drag&Drop of a video or a website URL from a conversation. ■■■ EXTENSION.app for watchOS ■ In-App Web Browser: - Input of a website URL to open a website. ■ Web Search: - Supported search engines: Google, Bing or DuckDuckGo. --- EXTENSION.app is free to use and provides an optional auto-renewable subscription. EXTENSION+ is a Universal Subscription, which hides “Subscription Banner” at the top of the app and unlocks additional features on all supported platforms: iOS, iPadOS, iMessage, watchOS, macOS, tvOS and visionOS. Features, which require EXTENSION+ subscription, are marked with (+) sign. Terms of Use: https://extension.app/terms Privacy Policy: https://extension.app/privacy

WristChatUI is a private, bring‑your‑own‑key AI chat client for iPhone and Apple Watch. It speaks the standard chat API format used by most major model providers, so you can point it at any compatible service you already use and keep your keys, prompts, and conversations on your devices and iCloud. A real Apple Watch app, not a notification mirror. Read, continue, and start conversations from your wrist with a native watch composer and dictation. Endpoints, API keys, and chat history sync from iPhone to a paired watch over WatchConnectivity, so the moment you add an endpoint on the phone it is ready to use on the watch. Multi‑provider, fully configurable. Configure as many endpoints as you want. Per endpoint: model, system prompt, temperature, max tokens, and custom HTTP headers. Switch the active endpoint with one tap. Power users can keep a fast model and a creative model on hand at the same time. Widgets and complications. A "New Chat" complication is available on every supported watch face family (rectangular, circular, inline, corner) and as a Smart Stack tile. One tap starts a fresh conversation. Siri and Shortcuts. "Hey Siri, start a new chat in WristChatUI" opens the watch app on a new conversation. The "Start new chat" action is also available in the Shortcuts app on iPhone and Watch, ready to drop into your own automations. iCloud backup. Export your conversations as JSON to your private iCloud Drive container for safekeeping or migration between devices. Privacy by design. - No Wrist Assistant account, no usage meter, no markup on tokens. - API keys live in the iOS Keychain on your devices. - Conversations live in a SwiftData store on your devices. - No analytics, no telemetry, no third‑party SDKs. - The only network calls the app makes are the ones you configure to the endpoints you choose. Requirements. - iPhone: iOS 26.0 or later. - Apple Watch: watchOS 11.0 or later. - An API key for at least one compatible chat API provider.