| 1 | 1 |  Goodreads: Book Tracker & MoreGoodreads, Inc | 書籍 | 1 | 4 |
| 2 | 2 |  Inkitt Galatea: Audio & eBooksInkitt GmbH | 書籍 | 2 | 1 |
| 3 | 3 |  eBook Search - download booksInkstone Software, Inc. | 書籍 | 3 | 34 |
| 4 | 4 |  Google Play Books & AudiobooksGoogle LLC | 書籍 | 4 | 36 |
| 5 | 5 |  Thorium ReaderEuropean Digital Reading Lab | 書籍 | 5 | 191 |
| 6 | 6 |  eBoox - fb2 ePub book readerREDIT, OOO | 書籍 | 6 | 87 |
| 7 | 7 |  ReadEra – book reader pdf epubREADERA EOOD | 書籍 | 7 | 99 |
| 8 | 8 |  ReadAnywhereMcGraw-Hill Higher Education | 書籍 | 8 | 145 |
| 9 | 9 |  Readest - eBook ReaderBilingify LLC | 書籍 | 9 | - |
| 10 | 10 |  SlowRead: Book Tracker & TBRAdrian Martinez Moreno | 書籍 | 10 | - |
| 11 | 11 |  wudaseMariamHaile bahta | 書籍 | 11 | - |
| 12 | 12 |  Selar: Access digital productsSelar Inc | 書籍 | 12 | - |
| 13 | 13 |  Amazon Kindle: Reading AppAMZN Mobile LLC | 書籍 | 13 | 11 |
| 14 | 14 |  MANGA Plus by SHUEISHASHUEISHA Inc. | 書籍 | 14 | 11 |
| 15 | 15 |  Ebook CentralClarivate Analytics (US) LLC | 書籍 | 15 | 11 |
| 16 | 16 |  NovelSpark - Read Good StoriesZongheng Culture Limited | 書籍 | 16 | 10 |
| 17 | 17 |  Thalia – Bücher entdeckenThalia Buecher GmbH | 書籍 | 17 | 10 |
| 18 | 18 |  Perlego: Books & TextbooksPERLEGO LIMITED | 書籍 | 18 | 10 |
| 19 | 19 |  My books - BooksMytamer bayramogullari | 書籍 | 19 | 10 |
| 20 | 20 |  Panels - Comic ReaderProdukt Software Engineering S.L. | 書籍 | 20 | 10 |
| 21 | 21 |  Wattpad - Read & Write StoriesWattpad Corp | 書籍 | 21 | 10 |
| 22 | 22 |  Libby, the library appOverDrive, Inc. | 書籍 | 22 | 10 |
| 23 | 23 |  Color Goods™ - Coloring GamesDewela Lda | 書籍 | 23 | 10 |
| 24 | 24 |  Poesie: The Daily Poetry AppPoesie Inc | 書籍 | 24 | 10 |
| 25 | 25 |  Adobe Digital EditionsAdobe Inc. | 書籍 | 25 | 10 |
| 26 | 26 |  tolino - eBooks & audiobooksNext Performance Germany GmbH | 書籍 | 26 | 10 |
| 27 | 27 |  Little Stories: Bedtime BooksDiveo Media OU | 書籍 | 27 | 10 |
| 28 | 28 |  Bookly: Book TrackerTWODOOR GAMES SRL | 書籍 | 28 | 10 |
| 29 | 29 |  Margins: Book TrackerParatext Inc. | 書籍 | 29 | 9 |
| 30 | 30 |  VLeBooksThe Little Group Ltd | 書籍 | 30 | 8 |
| 31 | 31 |  BooktimeHindawi Foundation | 書籍 | 31 | 8 |
| 32 | 32 |  Stories of Prophets in IslamImran Qureshi | 書籍 | 32 | 8 |
| 33 | 33 |  Mihon: Manga ReaderDevnaro LLC | 書籍 | 33 | 8 |
| 34 | 34 |  Apple BooksApple Inc. | 書籍 | 34 | 2 |
| 35 | 35 |  Audible: Audiobooks & PodcastsAudible, Inc. | 書籍 | 35 | 9 |
| 36 | 36 |  Kobo Books & AudiobooksRakuten Kobo Inc. | 書籍 | 36 | 2 |
| 37 | 37 |  Everand: Audiobooks & EbooksScribd | 書籍 | 37 | 2 |
| 38 | 38 |  Ebook ReaderEBOOKS.COM PTY LIMITED | 書籍 | 38 | 3 |
| 39 | 39 |  My Books – Unlimited LibraryDigital Press Publishing, s.r.o. | 書籍 | 39 | 3 |
| 40 | 40 |  Color Therapy Coloring NumberMiinu Limited | 書籍 | 40 | 3 |
| 41 | 41 |  Skoobe: eBooks und HörbücherSkoobe GmbH | 書籍 | 41 | 3 |
| 42 | 42 |  Une Touche D'Histoirecedric soubrie | 書籍 | 42 | 3 |
| 43 | 43 |  The Adventures of TintinTintinimaginatio | 書籍 | 43 | 3 |
| 44 | 44 |  Vivlio KidsVivlio | 書籍 | 44 | 3 |
| 45 | 45 |  IZNEO BD, Manga, Comics en HDizneo | 書籍 | 45 | 3 |
| 46 | 46 |  The 3 Little Pigs - DiscoveryWissl Media | 書籍 | 46 | 3 |
| 47 | 47 |  tigerbooks - Medien für KinderTiger Media International GmbH | 書籍 | 47 | 3 |
| 48 | 48 |  bdBuzz : BD Comics MangaNenuphar Development | 書籍 | 48 | 3 |
| 49 | 49 |  Goldilocks - DiscoveryWissl Media | 書籍 | 49 | 3 |
| 50 | 50 |  Storytel - Audiobooks LibraryStorytel Sweden AB | 書籍 | 50 | 3 |
| 51 | 51 |  Marvel UnlimitedDisney Electronic Content, Inc. | 書籍 | 51 | 3 |
