We are just starting to use SharePoint via 365. We found an app that we like, that asks for the following permissions:
- Let it access basic information about this site.
- Let it access basic information about the users of this site.
Basic info about site and users could mean a lot of data actually. This is for a private site, not public, if that makes a difference.
I did some google searching and strangely enough did not find a listing of what types of info they would get from us. Seemed strange that MS did not provide something a bit more descriptive with an example.