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.
Mobile Metronome - Mobile Metronome is a pretty complete metronome for any usage, from the simplest beat count...
Fine Tuner - Fine Tuner is a minimalistic guitar tuner that utilizes your device's built-in microphone.
Open Metronome - Open Metronome, a Free Open Source Metronome for Windows Mobile and Pocket PC.
Metronomus - Powerful and beautiful online metronome
Bounce Metronome Pro - Professional musicians are amazed by Bounce Metronome's advanced rhythm capabilities.