How did you implement donation acceptance in your application?

Question

Android

As far as I know, Google bans apps if internal content is sold through third party systems, i.e. you need to use Google Wallet. But going to a third-party site can be considered a violation or not?
If someone had experience in integrating donations, please share how you implemented it?

Answer 1

My main means of accepting payments is Google Play. But at the same time, on the project website, I connected Yandex Money with a note that this is a secondary payment method for those who find it inconvenient / impossible to pay via GP (Crimea / no card or desire to "shine" it). Yandex Money accepts many more types of payments:
Theoretically, the donation amount can be more than the preset amount - but if this is not emphasized, no one will get confused.

Answer 2

The "Alpari Options" application makes a transition to its website, when replenishing the account, bypassing the "Google Wallet". Isn't this considered a violation? Or is that not considered selling content? (Just as an option for accepting payments)