What are the approaches to synchronize purchases between platforms (IOS, Android) and Website?

Question

Mobile development

What are the approaches to the implementation of purchases and their synchronization between IOS, Android and WebSite platforms?
Perhaps there are ready-made solutions for organizing a similar structure, or someone can share their experience.

Answer 1

well, there is guaranteed a "build it yourself" approach: write clients for both mobile APIs, and display them in the general statistics-admin panel, there - the data from the site
and look at ionic.io