GoodTuner!

GoodTuner is as simple and intuitive as a clockUnique Features:1.Clear clock style user interface2.Support 9 instruments and chromaticOther Features:3.Precise to 1 cent(1 cent = 1/100 semitone)4.Selectable Notations(CDE,DoReMi,)5.Adjustable Reference Pitch(A4) frequency in 0.1 Hz increments from 340.0 to 540.0 Hz6.Support Custom-Tuning(in 0.1 cent increments)7.Selectable sensitivitySupport more than 50 tunings for instruments:1.Guitar2.Guitar(7 String)3.Bass4.Mandolin5.Banjo 6.Ukulele7.Violin 8.Viola 9.Cello10.Chromatic General 12 Equal Temperament Instrumentps: You can use Chromatic mode to tune any tuning.