Metronomus - Powerful and beautiful online metronome
Fine Tuner - Fine Tuner is a minimalistic guitar tuner that utilizes your device's built-in microphone.
Bounce Metronome Pro - Professional musicians are amazed by Bounce Metronome's advanced rhythm capabilities.
Super Tuner - Super Tuner is a musical tuning application that allows users to tune their instruments with ease to the frequency they want.
TempoPerfect Metronome - TempoPerfect is a free software metronome.
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.