Freerse does not collect user information. As far as I know, nostr's client does not collect any user data information. Only relay stores all user information. Unless the client has its own server or relay. There are two ways to avoid leaking your IP address. 1. Use VPN. 2. Set not to provide location and information when uploading photos and videos.

Freerse's photo and video uploads are called by #[2] 's storage service. I saw #[3] said before that they will clear all information when uploading pictures and videos to ensure the privacy of users' uploaded pictures.