iPad users what apps do you use

I've been keeping it simple using JamUp for my guitar and recording into garageband since the interface is pretty easy.

I do run into some headaches from time to time editing in garageband. I have Multitrack DAW but don't use it much.

anything you recommend?

I use IRig midi adapter for my electronic drums. This allows me to plug directly into Garageband. Overall the quality is good, and I do not need any amplification.