I'm developing and app that charges the user a variable amount per month depending on the use.
I've looked at the guidelines and I don't know if it's possible because most of the payments allowed are pre-paid methods.
Could we do it externally? I mean, we add payment methods from a website and then the user will see the cost of every use in the app, but the user won't be billed for that until the end of the month.
Thanks!