I would like to implement a referral feature in an app that would add days to the user's current active subscription. Is there a way to do that using Apple's auto-renewable subscriptions?
Example
- A user has a 12-month subscription that will renew in 3 months for an additional 12 months
- The user refers a friend to use the app
Expected result
- The user has a 12-month subscription that will renew in 4 months for an additional 12 months