PitchBot - Smart Chromatic Tuner (iOS) app for $0.99
PitchBot is a chromatic tuner designed to work well with guitars, strings, woodwinds, and more. PitchBot's tuning prowess is in its custom-made algorithms to capture, measure and interpret audio data. PitchBot delivers quick and accurate readings, even in the noisiest environments.
Recognizing the needs of musicians, PitchBot balances ease-of-use with a versatile feature set. It includes dual tuning readouts, built-in RMS amplitude measurement, adjustable reference pitch, and transposition, all clearly and intelligibly laid out.