This project was actually my exit way from Goodreads. Unlike another commenter, I found virtually no issue with searching for books in European languages. All the statistics which GR offers are available, and you can easily import your books to the app. And of course, no ads, zero trackers and open source.
The only caveat is the social aspect, since this is an offline tracker.
Edit: If you have any concerns, hop on the matrix community where the dev is active.
Openreads is looking for funding for IOS development. (github.com)
Become a Github sponsor or buy the dev a coffee.