Testing

You can test a complete purchase flow by using a sandbox account with Apple and Google

When testing In-App Purchases in a Sandbox environment, the duration cycles of the subscriptions are shortened to be able to evaluate behaviour for Auto-renew cycles.

After 5 renewals your Subscription is automatically cancelled.

All confirmation emails are sent by the App store to the email address used for testing.

See below for the time correspondence :

testing in app purchases subscription cycles

Apple

You must use a sandbox account and TestFlight to test a purchase in sandbox mode

Test In-app integration in Apple App Store

Google

You must add your Google account to the licence testers list to make a purchase in sandbox mode

Test In-app integration in Google Play Store