Is it possible to make a service that would automatically make a purchase in the markets?

Question

Apple App Store

Is it possible to create such a service that would automatically pay for certain user purchases in Google Play, Apple Store or purchases in another application?
Example: I want to make a service where the user collects some points, which he can withdraw only through the purchase of certain goods in another application for his phone.

Answer 1

Negotiate with these authors of other applications