Understanding Live App Testing for Vega
With Amazon's Live App Testing (LAT) service, you can distribute an app that you intend to publish to the Amazon Appstore to a pre-defined set of testers before going live. You can distribute both APK and VPKG binary types within your current live app tests. The testers can sample the full suite of Amazon services against Amazon's production environment, to make sure your app is working as expected. Examples of features you can test include the following APIs and services:
- In-App Purchasing (IAP)
- Facebook integration and connectivity
- Amazon Device Messaging
Before you publish your app, you can use LAT to gather feedback, improve quality, increase stability, and optimize the experience . Your test results show you exactly what your customers would see if the app were live in the Amazon Appstore.
Pre-submission testing workflow
Use the following process to submit an app to LAT:

- Submit the APK and VPKG for your app to LAT.
Note: You can either submit two binary types at the same time by submitting an APK and VPKG together, or you can submit one binary type first and later edit the live app test to upload a second binary type. For example, you can submit only an APK to the live app test and start the test, and later upload a VPKG to the same live app test. However, you can't edit the existing binary that you already submitted to LAT.
- Have your group of testers test your app using LAT:
- Add your testers to tester groups.
Note: If you're also testing In-App Purchasing (IAP) on both Fire OS and Vega OS devices, add a tester group for each device type. Make sure the groups are mutually exclusive with no shared email addresses to avoid testing conflicts. Consider this scenario. Both the Fire OS group and the Vega OS group contain the same email address. The tester signs in with that email address across both device types, and they purchase an in-app item on a Fire OS device. When they open the app on the Vega OS device, the item shows as already purchased.
- Testers in each tester group download and test your APK and VPKG.
- Add your testers to tester groups.
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Evaluate your tester feedback.
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Based on the test results and feedback, make any changes to your app. Test the changes by creating a new live app test.
- When you are satisfied with your testing results for one binary type, you can unassign that tester group from the live app test and continue testing on the other binary type. To publish the app on the Appstore, you can upload the binary using the app submission workflow.
Note: If the live app test has both APK and VPKG binary types, the Promote to Upcoming option is not available. If the live app test has only one binary type, Promote to Upcoming remains available.
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Last updated: Sep 30, 2025