Will there be a pro version without in-app purchase like there was before? If I could avoid the in-app purchase I’d prefer it. There where weekly threads on Reddit when the in-app version failed to work correctly and I never had any problem with the pro version.
Donation links are a violation of Google’s T&C and will get an app banned.
How does it work for apps that are a part of other services?
Say a company has an app available to all customers that pay for some unrelated service, it would be weird to require them to do the transaction over Google Play?
In that case the company could make the app free, but it wouldn’t be useable for anyone who didn’t own the base service, I guess.
And users who’d want to subscribe to the base service must then be able to do so through the app, that’s part of Google’s requirements.