GoToPitch - GoToPitch.
Fine Tuner - Fine Tuner is a minimalistic guitar tuner that utilizes your device's built-in microphone.
Meja - Pitch your ideas, get constructive feedback!
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.
Pitchdeck - Pitch Deck is a web-based solution to you create engaging presentations.
LINGOT - Musical instrument tuner, LINGOT is a musical instrument tuner.