The email service that was the first for more than a decade is Gmail, where we receive many of our order confirmation messages when you buy anything on sites like Amazon, Aliexpress, Gearbest, etc ... Google has recognized these emails as requests It even offers a site where all your orders are collected.
This site is intended to display all purchases made from your Gmail e-mail. Where after login we can see the chronology of the orders received from these stores, the contracted subscriptions, and the applications that were acquired by the money in Google Play.

Link site know all what you have purchased Online: Purchases