Great App
I have Ampkit and Amplitube, and Ive deleted Amplitube off my phone, because Ampkit sounded way more realistic. I bought Amplitube on the iphone, and then learned that downloading it on the iPad does not give you the same features that you paid for on the iPhone. You to have basically buy the app all over for the iPad. Anyway, AmpKit was a much better buy.
About reviews regarding feedback, you can also adjust the mic on the amp to avoid feedback. I found moving it to the side instead of the center eliminates noise. The noise gate is also great.
Al453 about
AmpKit - Guitar amps & pedals, v2.2.5