AI Programming Platform Bitrig Supports iPhone Duo: Interactive 3D Simulator Can Be Folded and Rotated for Applications

According to 9to5Mac, as Apple released Xcode 27.1 Beta 1 last week and added support for iPhone Duo app development, the AI coding platform Bitrig also announced support for building and testing iPhone Duo apps.

According to the introduction, Bitrig was initially an application designed for "vibe coding," allowing users to generate native SwiftUI apps through text or voice prompts and run them directly within the Bitrig app on the iPhone. Since then, the platform has continuously expanded, launching a Mac version, adding a complete Xcode toolchain, an integrated iPhone simulator, and real-device testing features. It also supports exporting projects to Xcode or distributing them via TestFlight and the App Store.

Simulator Can Read Hinge Data in Real Time

After Apple officially supported building and testing iPhone Duo apps with the release of Xcode 27.1 Beta 1, Bitrig quickly followed up, offering an interactive 3D simulator: developers can freely fold, tilt, rotate, and adjust the device's orientation within the simulator to test how the app performs in different usage scenarios.

For the hinge interaction of the iPhone Duo, developers can use onHingeChange in SwiftUI to adjust the app's interaction and visual effects based on the device's folded state; the Bitrig simulator can read hinge data in real time, helping to test the app's response during the process of unfolding from a closed to an open state.

Bitrig also supports creating various creative interaction scenarios using ArrangementView. For example, when the iPhone Duo is placed on a table in a tent-like shape, developers can place media content in the top half and control buttons in the bottom half; when the device stands on the edge, a horizontal layout can be used, allowing users to use the app through the outer screen.

In addition, Bitrig can help developers manage multiple versions of Xcode — they can prepare iPhone Duo apps in advance using the beta version of Xcode, and switch back to Xcode 27 to continue building and releasing updates for existing applications.