**Background**
The Android team is planning to work on a feature that will acknowledge that a user is a donor in the contributions dashboard, where they see other stats about their behavior. There is no API or data storage currently that would help identify a user as a donor. In order to know if a user is a donor we would need to update our instrumentation.
**Requirements**
- If a user donates using GPay retain that they are a donor and the date of the donation, which will later be surfaced to that specific user in an interface we release in November
- If a user returns to the app via the Web Donate Thank page, retain that the user is a donor and the date of their donation
- Whether or not a user is a donor should be tied to their app install id not User name
- Honor 90 day data retention policy for experiment