Adlibris Letto is an Android app that lets you read e-books and listen to audio books from your personal library. With this app, you can access your entire collection of e-books, audio books, and e-singles anytime and anywhere, even without an internet connection. Plus, all your reading progress and library syncs with Adlibris' other e-book platforms, including your e-reader Letto.

In addition to reading and listening, Adlibris Letto allows you to customize your reading experience by selecting the text size, font, and background - white, sepia, or night mode. The app is user-friendly, with a sleek design and easy-to-navigate interface.

Overall, Adlibris Letto is a great app for book lovers who want to have their personal library at their fingertips. With the ability to read and listen on-the-go, and seamless syncing with other Adlibris platforms, this app is a must-have for avid readers.