Moon Phase Pro Beats Wolfram Alpha As No. 1 Android Book

After almost four months of dominating the No. 1 slot in the Android Books & Reference App Top Ten list, Knowledge engine WolframAlpha has been replaced by Moon Phase Pro and has slipped to No. 2. The app has led the list since we started counting at the beginning of May.

The new bestseller, Moon Phase Pro, has long been in the Top 10.The app includes 3D interactive displays of moon phases, angles, rise/set times, & nearest syzygies.

To prepare for Mediabistro’s upcoming Publishing App Expo on December 7-8, we will be spotlighting the top grossing book apps every week–helping our readers discover and analyze successful content.

Below, we’ve listed the top ten paid Android Books & Reference apps of the week. We’ve linked to the online pages for the individual apps so you can explore the content.

Top Paid Android Books & Reference Apps

1. Moon Phase Pro

2. WolframAlpha

3. NIV Bible

4. iKamasutra

5. Aldiko Book Reader

6. iMissal

7. iQuran Pro

8. LDS Scriptures

9. U.S. Cop

10. Terra Time