The entire world of Facebook/iPhone apps is basically this these days. Be sure to rate this app with 5 stars/Like/etc. for your freeeeee in-game coinage!
> It's technically impossible to know if a user has left a review on the App Store.
You know they've clicked through to your entry in the store. Users don't know they'll still get their coinage if they then don't rate the thing after clicking.
The entire world of Facebook/iPhone apps is basically this these days. Be sure to rate this app with 5 stars/Like/etc. for your freeeeee in-game coinage!