After using OverDrive, I decided to try out Libby since Libbythelibraryapp looked so much more upgraded, if that's the right word. The interface is absolutely beautiful; borrowing books from the library is easy; and I love how my bookshelf looks more than I liked the one from OverDrive. I only have a couple of suggestions, however. 1) When I'm reading from the iBooks app, one feature I really like about it is the gray scale it uses, along with the day scale, sepia scale, and night mode. It would be absolutely awesome if Libby used this gray scale as well! And 2) I'm not sure if this was just a bug, but once when Libby froze, I had to force quit Libbythelibraryapp and re-launch it. However, I had to go through the entire "Welcome to Libby, please sign in" screen. For awhile it wasn't letting me sign in with my library card number until I had to start Libbythelibraryapp over again. It's just a tiny, minor thing, and it might have been just a bug, but I thought it was a bit odd. Nonetheless, I still think Libbythelibraryapp is awesome, and I'm so glad I downloaded it! You guys have done a fantastic job at designing Libbythelibraryapp, and it's helped me get back into reading again! So thanks! :)