Top Paid Books & Reference Android Apps Ranking in Poland
See the full list of Poland Top Paid Android Books & Reference apps for September 9, and read the full analysis below
| Usage Rank | App and Publisher | Category | Usage Rank | Change | Store Rank | Change | |
|---|---|---|---|---|---|---|---|
| 1 | 1 |  ReadEra Premium – ebook readerREADERA LLC | Books & Reference | 1 | = | 2 | |
| 2 | 2 |  Moon+ Reader ProMoon+ | Books & Reference | 2 | = | 5 | |
| 3 | 3 |  Librera PRO - Book readerLibrera | Books & Reference | 3 | = | - | |
| 4 | 4 |  Collins Bird GuideNatureGuides Ltd | Books & Reference | 4 | 1 | - | |
| 5 | 5 |  Calibre SyncBIL studio | Books & Reference | 5 | 1 | 4 | |
| 6 | 6 |  FBReader PremiumFBReader.ORG Limited | Books & Reference | 6 | 2 | 8 |