Totally amazed but then...

This app is amazing but it only works for a few days then it totally just like stops working for some reason.Anyway to my main point is that if I try to play it now it shuts down and now I am re-downloading if again because why?It keeps Shutting Down (Btw I have iPhone 4 ) My IPad works perfectly fine and my moms Samsung phone works too,but my iPhone OMG I freak out when I cant play
Thank you very much

Royalty Kills about Disney Infinity: Toy Box 2.0