Codex
If you want to catalog books with as little effort as possible, this free library app is the right choice. Whether you want to scan ISBNs or barcodes, enter books automatically or manually, note categories and loan and owner status, search for works automatically or mark favorite books - everything is possible.
Goodreads
In addition to the ability to record books read, the taiwan rcs data opportunity to exchange ideas with like-minded people, as well as with the authors of their favorite books. You can also rate books and access the ratings of others. If you want, you can add community members to your own friends list and see what others are currently reading or recommending. The disadvantage: every book has to be entered manually. There is also no cataloging function that helps keep track of the inventory or locations of the books.
My Library
This free book app uses numerous online databases such as Amazon, Google, Open Library, Libris and many more to search for titles. Titles that the app cannot find must be entered manually. The big advantage of this app is that it automatically converts photographed blurbs from photos into text, saving time-consuming typing. It also offers a separate list for comics. But: This app only works on Android devices to catalog books.