Having Fun (for older ipods)

I just bought this app july 1, 2012, for my ipod touch and works great. No issues, can load from my library. All functions work. Heres the thing, my ipod touch is "version 4.2.1". Now when i went to put it on my ifone 4 it does not work. So keep that in mind before buying this one. An this is the first dj app i found that was compatible with my version of ipod touch.

Peanuhbuttah about Tap DJ - Mix & Scratch Music, v1.0