Libby

Libby is one of the best-value apps on the App Store, and the kind of app that feels useful immediately for anyone who loves reading. If you have a library card and you’re part of a participating library, Libby lets you borrow ebooks, audiobooks, and magazines for free. That means your new iPhone can double as a portable library without adding another monthly subscription to your life.
The best part is that you don’t just find old, outdated books; you can also find some hidden gems you didn’t know you’d love and popular titles that you’d have to pay for with other apps. The downside is that this works as a literal library, which means you’ll need to wait if the book you want isn’t available. Likewise, you’ll need to return the book after some time, even if you didn’t finish it.
Once you sign in with a library card, the app is simple to use, and downloaded content makes it even more practical when you’re offline. If you read even semi-regularly, Libby is one of the smartest downloads you can make.
