Petey is an Apple Watch and iPhone AI assistant app that allows users to interact with the famous GPT model. With Petey, users can have conversations, ask questions, and generate longer messages without typing. The app offers various features, including creating playlists with Apple Music, viewing locations on Apple Maps, and getting rich previews of any shared URLs. Users can also continue their conversations thanks to the history feature and share the outcomes of their interactions via text, email, or social media. Petey can be set as a complication for easy access and offers text-to-speech functionality. The app also supports shortcuts, allowing users to replace Siri with Petey. Additionally, users have the option to purchase GPT4 support as an in-app purchase. iOS-only features include live activity, sharing full conversations, direct links to mentioned websites, and Apple Music integration. Petey provides users with a valuable tool for accessing knowledge and communicating with an intelligent computer in real-time.