Hands down the best tuner period! – insTuner - Chromatic Tuner with Tone Generator Review

Tune anything. Use it to tune any instrument. I use it on uke and guitar, but also check your harmonica! Works very well in fairly noises environments like 75 Ike’s in a concert hall.
Review by Honky Tonk Heroes on insTuner - Chromatic Tuner with Tone Generator.