Book Catalogue vs MyBookDroid

Book Catalogue
An open source book cataloguing application (source on github). Books can be added manually, by ISBN, or barcode. Remember to backup and export your existing catalogue before you upgrade. Features include: sorting by author (last name), title, series, etc, user-defined sort and list styles, search Amazon, Google Books, goodreads and LibraryThing for data, searching, thumbnails (download, gallery or camera), loaning books, goodreads synchronization, export and Backup, bookshelves (books can be on multiple shelves)
MyBookDroid helps you to find and keep track of books you have read, books you want to read/buy, books you are reading