Does iOS family sharing apply to in-app-purchases too?

Question

I am keen to understand that does family sharing of purchase would work with in-app purchases too as it works with app and music on iOS 8.

Answer 1

As of iOS 14 and macOS Big Sur it will be possible for developers to also offer family sharing for in-app-purchases, as mentioned in the macOS Big Sur press release:

Developers can now also offer Family Sharing for their in-app purchases and subscriptions

These operating services will be available as release versions in the fall of 2020.

Update 04/12/2020: Family sharing of non-consumable in-app-purchases can now finally be enabled in App Store Connect:

Update 23/09/2020: With iOS 14 having been released a week ago, Apple is now promoting the availability of family sharing for in-app-purchases in the App Store. However, the corresponding switch in App Store Connect is not available as of today. I couldn't find it and there are multiple reports on the web about the missing availability of the switch.

Answer 2

No, IAPs are not supported. Any app purchased by a member of the family sharing group is accessible to all but in-app purchases must be made by each individual member, i.e. they are non-sharable.