This is a link to an android app Tuner that I'm pretty fond of. I'd suggest any android phone or tablet owners check out the free version. It's easily as good or better than any other hand-held tuner I've used, and it has the added benefit of being on a device you already own and probably keep handy. And it's also FREE! And if you decide you like it, for $2 you can get the version that doesn't have the small ads at the top.
https://market.android.com/details?id=o ... ings&hl=en
I don't own and have never owned an iPhone, so I can't be sure, but I would imagine there are probably some pretty good tuner apps in the Itunes store as well. Might be worth checking out.gStrings Description wrote:Description
gStrings - a chromatic tuner for the guitar, violin, or any other instrument.
This is the ad supported version of gStrings (http://www.cohortor.org/gstrings), a chromatic tuner application measuring sound pitch and intensity.
It will let you tune any musical instrument (violin, viola, violoncello, bass, guitar, piano, wind instruments).
Features include:
1. orchestra tuning (shifting/redefining tone frequencies),
2. different temperaments (just, pythagorean, meantone, comma, etc.),
3. a variable range nonlinear scale,
4. microphone sensitivity setup,
5. pitch pipe,
and many more.
If you were looking for a guitar tuner, try it!
Here is a screenie of the tuning screen..
Settings Menu