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The following are frequently asked questions (FAQ) about Appstore DevTest for In-App Purchasing (IAP).
DevTest for IAP is a feature provided by the Amazon Appstore that lets you locally test in-app purchases end-to-end. After registering your app, you grant access to testers of your choice. Only those testers are allowed to test IAP locally with Amazon production services. DevTest for IAP doesn’t require you to publish your app to the Appstore to test with Amazon services. Testing with DevTest for IAP can be done before app submission and before Live App Testing (LAT).
After registering for DevTest for IAP, you can define a list of testers and enable them to use DevTest for IAP in your app. In the Developer Console, you can access tester management to add or remove testers, and to reset in-app items for testers. Only the testers that you add in the console are granted access to test IAP for that app.
You can test any in-app-purchasing use case with DevTest, except for Quick Subscribe. For features not related to IAP, you don’t need to use DevTest, and can instead use your regular local testing or use LAT.
responds with IAP mock responses, while DevTest and LAT connect to Appstore production services and provide responses from production servers. To learn about the differences between DevTest and LAT, see in the DevTest for IAP documentation. DevTest and LAT are independent of each other, and you can use one or both. Consider first testing the IAP flow in your app using DevTest, before using LAT. When you perform local testing with DevTest first, it can make development faster and lead to more efficient beta testing with LAT.
You provide DevTest for IAP testers. You can add up to 50 testers.
Make sure you’ve granted access to your testers and uploaded your certificate. You must sign your app with the same certificate that you used during registration. Verify you followed all the steps in . If you still have issues, please contact Amazon developer support and provide logs and screenshots.
You can upload a maximum of three certificates for DevTest. You can use any one of the uploaded certificates to sign your app and use DevTest for IAP.
No. You can choose to distribute your test apps only to the testers you designate, but Amazon does not impose confidentiality obligations on testers.
DevTest for IAP is free of charge.
Yes. For details, see .

Last modified on September 30, 2025