I want to update but I have iOS 6

I really want to play this game please can you also make the latest update for iOS 6 please because my friends have the latest update on there iPod 5th and I cant get it because I have iPod 4 and todays my birthday and I wished on those candles I could play this awesome app so please

Sabrine the jellybean about Littlest Pet Shop Your World, v1.6.0