Fine Tuner - Fine Tuner is a minimalistic guitar tuner that utilizes your device's built-in microphone.
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.
Metronomus - Powerful and beautiful online metronome
LINGOT - Musical instrument tuner, LINGOT is a musical instrument tuner.
The Snail - Advanced instrument tuner and audio analyzer
Metronome M1 - Simple but extremely accurate metronome for mobile.