Private Update Queries is a feature we'll be working on this year, whereby the relay will have no clue which apps you have installed on your device - through some cryptography magic: VOPRF-based Private Set Intersection.

Tell me which app store cares more about user's privacy. I'll wait.

If you have any cryptographer friend who can help us review, let us know!

https://github.com/zapstore/zapstore/issues/325