I am curious about this:

> we let users know exactly what data they will be sending and how we use it

Many apps will just say “see privacy policy” or similar when requesting access. See [1] for examples. That is an approach I would consider dishonest as most users will not try to find and read through it. Does your method use a more explicit consent flow? I think that is a big problem in this space, so you could really differentiate yourselves if informing users in a truly explicit manner unlike others.

[1] https://guardianapp.com/ios-app-location-report-sep2018.html