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Manage testers in App Distribution

You can manage your project's testers in the Testers & Groups tab of the App Distribution page (in the Firebase console). This tab allows you to:

  • Add new testers or remove existing testers from your Firebase project. Once a tester has been added to your Firebase project, you can add them to individual releases. Testers who are removed will no longer have access to releases in your project, but may still retain access to your releases for a window of time. You can also add or remove testers when setting up a distribution of your app. To find out how, read the distribution guide for the Firebase CLI, fastlane, or Gradle.

  • Import testers from CSV files.

    The CSV file must contain the tester's email address. It can also contain the tester's name (optional) in the same row. For example:,Ali Smith
    Cal Nguyen,
  • Add testers or remove existing testers from a group. For example, you could create one group for your iOS testers and another for your Android testers. You can then invite all of a group's members to test a new build.

Exporting test device UDIDs

When testers sign up to test your release, you can export your testers' device names and identifiers in a CSV file and update them all at once to your app's provisioning profile. See Register additional devices for instructions.

Tester limits

Firebase App Distribution has the following tester limits:

  • Add a maximum of 500 testers to a Firebase project

  • Add a maximum of 200 testers to an App Distribution group

  • Add a maximum of 200 testers per distribution

To add more testers, request a free limit increase.