StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
On Android is it possible to detect if a user bought your app before it became free?
| Author | Votes | Δ |
|---|---|---|
| sergej shafarenka | 1 | +3.87 |
| George Powell | 0 | -3.87 |
Last visited: Sep 14, 2014, 5:07:29 AM