Fine Tuner - Fine Tuner is a minimalistic guitar tuner that utilizes your device's built-in microphone.
Pitch Bear - Database of 1500+ investors to fund your startup
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.
Confluence.VC Investor Database - 2,000+ VCs filtered by sector, stage, geography, and type.
LINGOT - Musical instrument tuner, LINGOT is a musical instrument tuner.
OpenVC - 2200+ VC firms by thesis to find 'best fit' for your startup