macOS and iOS
How do I run iOS tests in parallel?
Quick answer
Shard by test target or test class across several simulators on one large macOS runner.
The detail that matters
One large runner running four simulators is usually cheaper and faster than four small runners.
Your next build could be twice as fast, at half the price
Start free. Migrating away is the same one line, and we publish that diff too.
Related
Do GitHub Actions runners support macOS?Yes, both GitHub-hosted and managed providers offer macOS runners on Apple silicon.Can I build iOS apps without a Mac runner?No. Xcode only runs on macOS, so an iOS build requires a macOS runner.Is Xcode preinstalled on macOS runners?Yes. runnerhut images ship several Xcode versions with matching command line tools.How do I select an Xcode version?Run sudo xcode-select -s /Applications/Xcode_16.4.app before your build steps.