I've gone through quite a few guitar related apps for ipod/ipad and android.
The only ones that have stuck are the
gStrings Tuner (on my phone, which is always with me), and the Peterson
iStroboSoft Strobe Tuner which I have installed on an 2nd gen Ipod Touch on my workbench for more detailed intonation and setup duties.
My current Guitar Toy DuJour is the Vox Amphone.
http://www.amazon.com/VOX-AMPHONETWIN-A ... x+amphonesI don't use much in the way of effects, and the amphones have an aux in, so it will work with any media source. Combined with my
Line 6 Variax JTV-59, which sits next to my desk ready to go, I have a pretty flexible practice set up.
I also have a
Boss JS-10 and a piece of software called
"The Amazing Slow-Downer"None if it helps though. I still suck.