| 1 | 1 |  Moon+ Reader ProMoon+ | 書籍 & 参考文献 | 1 | = | 3 | |
| 2 | 2 |  FBReader PremiumFBReader.ORG Limited | 書籍 & 参考文献 | 2 | = | 18 | |
| 3 | 3 |  ReadEra Premium – ebook readerREADERA LLC | 書籍 & 参考文献 | 3 | = | 1 | |
| 4 | 4 |  Librera PRO - Book readerLibrera | 書籍 & 参考文献 | 4 | = | 10 | |
| 5 | 5 |  Knots 3DNynix LLC | 書籍 & 参考文献 | 5 | 1 | 4 | |
| 6 | 6 |  UniversalisUniversalis Publishing | 書籍 & 参考文献 | 6 | 1 | 7 | |
| 7 | 7 |  e-Sword: Bible Study to GoRick Meyers | 書籍 & 参考文献 | 7 | - | 2 | |
| 8 | 8 |  Collins Bird GuideNatureGuides Ltd | 書籍 & 参考文献 | 8 | 1 | 8 | |
| 9 | 9 |  BirdSounds EuropeBirdingApps | 書籍 & 参考文献 | 9 | 1 | - | |
| 10 | 10 |  Knot IQ - The Bear EssentialsThe Bear Essentials Outdoors Co. LTD. | 書籍 & 参考文献 | 10 | = | 6 | |
| 11 | 11 |  dict.cc+ dictionaryPaul Hemetsberger | 書籍 & 参考文献 | 11 | 2 | 39 | |
