If the developers want five stars ... – Korean Spy: Learn Korean Review

If the developers want five stars, they'll get rid of the bug that wrecks an otherwise marvelous game. The bug ... after I upgraded to Pro, EVERY time I re-start the app I continue to get annoying ads after every round of play. Pressing RESTORE (to remove the ads in Pro) doesn't remove the ads permanently, but only until the next game: the same thing that happens when you DON'T pay for Pro. (What's the Korean translation of "shaft your customers"?)
Review by k8gladst1 on Korean Spy: Learn Korean.