Google Play Store Ranking.

Want to maintain your App ratings high? Save this checklist by Daniel Shaw:

1. Number of Ratings
2. Quality of Ratings
3. Amount of Downloads
4. Downloads Growth
5. Number of Uninstalls
6. Level of Usage
7. Page rank (links coming into your app page on the play store)
8. Description: Fully filled out to max number of text
9. Keyword in Title & 5 times in description text
10. Video demonstration (reported by some users to have an effect on overall ranking)

Read Daniel’s article here.