Libby is a free-to-use proprietary mobile app that supports users in accessing library ebooks. It is a product of OverDrive, Inc. The app uses a user's library card number to connect to the user's library account and check out ebooks. Once books are checked out, the app serves as an ebook reader.
According to OverDrive CEO Steve Potash, as of 2023, Libby is used by approximately 90% of public libraries in North America.
Libby is a service provided completely free of charge. However, it is not free software. From Wikipedia
