Why doesnt it work

In details it states compatible with IOS 6.0 and iPod Touch etc... I have iPod Touch 4 AND IOS 6.1.6 but yet it cannot load and says it is not compatible with my system. Please refund my purchase.

cPi55 about Sports Jeopardy! - Quiz game for fans of football, basketball, baseball, golf and more, v1.0.3