Great app! I have been using this app for a while and have saved over 700 books with it. I'm an avid reader  and I use Kindle Unlimited to borrow books to read. If you buy a book from Amazon you can later see if you've read it  but if you borrow one with the Unlimited program and then return it there is no way too see if you've previously borrowed or read a book. It was always a problem remembering which books I had already read. With this app I can keep track of the books I have previously borrowed. I can keep a personal review of each book. It is easy to put the books info into the app by using the ISBN or ASIN number  or you can do an Internet search for the book or enter it manually. You can expand or collapse the list of books making the list quicker to navigate. The app occasionally reminds me to do a back up so I don't lose all that info  and the backups are easy to do. I use this app everyday  and would highly recommend it. It not only lists which books I have previously read  but I can look to see whether I liked the book or the author. Wonderful tool.
February 23 2017