Cello Tuner – iPhone App
RCello Tuner Simple: $0.99*
Of course NOW there is a free app on the iTunes store that was not there originally! However, I still think the $0.99 is worth it for Cello Tuner Simple. The free app does not play the note endlessly, it just plays it for a few seconds and then stops on it’s own. As well, Cello Tuner Simple SOUNDS more like a real Cello. The free app sounds like an electronic keyboard. (Although both are clearly electronically generated)
Cello Tuner (Alvin Yu): free*
*Price at time of this writing.