Luke LeBrunComparing and contrasting app privacy policies for Threads, Bluesky, Twitter and Mastodon:
Akos Miklos 
@llebrun Technically Mastodon does collect personal info (username, pass, email) and user content (posts, images/vids uploaded), because those are needed to use the app.
Anca@miklos_akos @llebrun That information is collected by the operators of each server, not by the providers of the Mastodon mobile app.
No information is getting sent to Mastodon, the company, when you use Mastodon, the mobile app.