Android — Library Book App

Widely considered the gold standard for ease of use.

These apps are designed to help you keep track of the physical books you already own. Libby, the library app - App Store - Apple Library Book App Android

Seamless synchronization across devices. You can start a book on your Android phone and pick up where you left off on a tablet or web browser. Widely considered the gold standard for ease of use

Offers immediate access without waitlists for many titles. but also movies

Instant borrowing of not just books, but also movies, music, and comics with no "holds" queue. 2. Personal Cataloging Apps (Home Library)

Depending on your goal, the "solid features" differ significantly:

These apps connect to your local library card so you can borrow ebooks and audiobooks for free.