So much. With the app, you can hear about new monthly book selections (with enabled push notifications), choose your book or choose to skip, pick any add-ons, ship your box, purchase audiobooks, rate and review books, participate in the reading challenge, and track Relationship Status progress.
For iOS devices, download it here or simply search “Book of the Month” in the Apple App Store. For Android devices, download it here or search in the Google Play Store.