Summary from review of Brainstorming document with HN, TS, SN:

• Making the history tab more accurate T370216 (allowing the same article to be repeated) will unlock a lot of stats we can share with users, including total articles read in the app, by topic, langauge, time period, frequency of visit, etc
• Adding local instrumentation for incrementing the amount someone has given through ApplePay would allow us to show a total of in-app donations someone has made, and identify them as a donor for Wikiwrapped. This information could be stored locally & does not need to be connected to their Wikipedia account or payment endpoints.
• We should do an early check with Legal on the first two points before implementing
• A lot of the datapoints we're interested to present are accessible through user contributions API, but we need to check if the volume that the Apps Wikiwrapped will create will not cause performance issues if we use this API.
• Insights from Growth's Newcomer impact module is accessible via API, but limited to the last 1,000 edits, and last 60 days in some cases. They are open to increasing the upper limit to a point if we think this data would be useful, and request it.

https://www.mediawiki.org/wiki/XTools - a good mine of potential implementations. The service can be directly queried though we should check what potential scaling issues exist here. Alternatively, its an indication of the kind of stats that are possible.