What CI/CD setup works best for both iOS and Android apps?

Mobile-focused services such as Bitrise or Codemagic are popular because they provide managed Mac build infrastructure and simplify signing and distribution. They can be a good choice if you don’t want to maintain your own runners, although a general CI system gives you more control and may fit better with an existing engineering platform.

A common setup is GitHub Actions or another CI platform combined with Fastlane. Android builds, unit tests, linting, and many emulator jobs can run on Linux, while iOS builds and simulator tests require macOS runners. Keeping only the Xcode-related work on macOS helps control costs.

Jenkins can work, but you’ll need to maintain suitable agents: Linux machines for Android and macOS hardware or hosted Mac agents for iOS. The bigger challenges are usually Apple signing, certificate and provisioning-profile management, and limited Mac capacity rather than the workflow syntax itself.

Whichever CI tool you choose, keep signing credentials in a secrets manager or an encrypted signing system instead of relying on developers’ laptops. Use Fastlane or an equivalent tool for store-facing steps, distribute test builds through TestFlight, Play internal testing, or Firebase App Distribution, and require an approval before production submissions. A device farm can cover the important smoke tests without putting every job on an expensive Mac runner.