TuneCrack VS Karang - Tuner for Guitar

Pitch Grid Test - Measure your pitch-distance precision recognition. The resulting relative pitch indicator shows your sense for relative pitch.

LINGOT - Musical instrument tuner, LINGOT is a musical instrument tuner.

PitchBlitz - PitchBlitz prepares you for the Pitch Grid Test.

AP Tuner - APTuner is a sophisticated chromatic tuner for your computer, tablet, and phone.

Guitar Tuna - GuitarTuna is the easiest, fastest and most accurate guitar tuner app out there!

TapNTune - TapNTune is a fully functional application that can help users tune their instruments with ease, and users can use it on their Mac system.