If your Android AAB builds on Codemagic have gradually become slower, this is commonly due to project growth (more code and dependencies) and updates in build tools like Gradle.

Answer

To speed up your builds you can enable caching for Gradle and Pub-cache in codemagic.yaml

workflows:
  android-workflow:
    name: Android Workflow
    max_build_duration: 120
    instance_type: mac_mini_m2
    cache:
      cache_paths:
        - $HOME/.gradle/caches
        - $HOME/.pub-cache

Note: Caching takes effect after the first successful build.

1. Check your build logs for SDK/NDK installs

   If you see lines like the following, those tools are being installed during each build:

   Checking the license for package NDK (Side by side) 28.2.13676358...
   Installing NDK (Side by side) 28.2.13676358...
   Installing Android SDK Build-Tools 35...
   

2. For iOS projects, cache CocoaPods

   workflows:
     ios-workflow:
       name: iOS Workflow
       max_build_duration: 120
       instance_type: mac_mini_m2
       cache:
         cache_paths:
           - $HOME/Library/Caches/CocoaPods