This page contains instructions on how to build your Unity application for Android as well as considerations to be aware of when you do. For information on the build process for Android and the tools Unity uses, see How Unity builds Android applications.
Instead of building your application, you can also export the Unity project as a Gradle project and import that into Android Studio. This is useful if you want more control over the build pipeline, want to see or modify the Android App Manifest that Unity generates for your application, or integrate Unity-powered features into another Android application. For more information, see Exporting an Android project.
Some digital distribution services that host Android applications have particular requirements that can change the build process. For example, Google Play requires your application to be an Android App Bundle (AAB) and not an APK. If you are targeting a specific digital distribution service with your build, see the documentation for that Digital distribution service first to check if the requirements differ.
Some digital distribution services have a limit on the initial install size of your application. Unity includes multiple methods that you can use to optimize the install size. For more information, see Optimize distribution size.
If you want to build your application for debugging purposes, application patching can help you reduce the time it takes to build your application. For more information, refer to Application patching.
Before you create a build, configure your project’s settings so that Unity builds the application with the runtime settings and build system properties you want. There are two sets of settings that configure a Unity build:
Unity can build Android applications in the following publishing formats:
By default, Unity builds Android applications in the APK publishing format. To make Unity build the Android application as an AAB:
To build your Unity application for Android:
If you selected Build and Run, when Unity creates the build:
Tip: After you specify the output path the first time, you can use Ctrl+B (macOS: Cmd+B) keyboard shortcut to build and run the application.
Android applications must be digitally signed to run on an Android device. There are two types of application signing:
When you provide custom signing information, Unity doesn’t store keystores and key passwords on disk for security reasons. This means that you need to re-enter key passwords each time you restart the Unity Editor. If you don’t provide the passwords and attempt to build the application, the build process fails. To avoid entering passwords each time you open the Unity Editor, it’s best practice to only provide custom signing information when you want to build the application to publish. To create a build for testing on a device, don’t provide custom signing information and use debug signing instead.
For more information about application signing, refer to Sign your app.