PitchLab Guitar Tuner - PitchLab Guitar Tuner is a software that helps artists to tune their guitar, and it comes with a chromatic tuner for free.
Fine Tuner - Fine Tuner is a minimalistic guitar tuner that utilizes your device's built-in microphone.
Metronome M1 - Simple but extremely accurate metronome for mobile.
MyGuitarTuner.com - Online microphone tuner for guitar, ukulele, violin and other instruments. Tune by ear or using the microphone of your device. It's fast and accurate algorithm makes it one of the best online microphone tuners available.
Guitar Tuna - GuitarTuna is the easiest, fastest and most accurate guitar tuner app out there!
Metronomus - Powerful and beautiful online metronome