[iOS] rive.a is not compatible with simulator builds (architecture mismatch)

[joseperezdev08]

Platform

Unity + iOS

Issue

When building a Unity project for the iOS simulator, the following error occurs:

This is caused by rive.a being built only for the arm64 architecture (iOS physical devices), and lacking compatibility with simulator architectures (x86_64 or arm64-simulator for Apple Silicon Macs).

Steps to Reproduce

1. Export project from Unity to Xcode
2. Select a simulator target (e.g., iPhone 14)
3. Build or run the project
4. Linker error occurs due to incompatible architecture in rive.a

Request

Please consider including both architectures in the provided .a binary:

• arm64 (for physical devices)
• x86_64 or arm64e (for simulators)

This would allow testing the app directly in the simulator without requiring a physical device every time.

Environment

• Xcode 16.4
• macOS 15.5
• Unity 2022+

[damzobridge]

Thanks for the detailed report. We haven't made any recent changes to the way we build for iOS on the Unity side, so I'll need to check with the team to see if there's a specific limitation here.

Will get back to you on this.