Chromatic Tuner
chromtuner.com±1¢ accuracy, eight historical temperaments, native, offline, opens in 200 ms.
Utilitiesguitar-tunermacosmusicaudionative-appone-time-purchaseinstrument-tuning
About
Chromatic Tuner is a native macOS app that uses Core Audio and the YIN pitch detection algorithm to deliver high-accuracy tuning directly from your hardware input. It supports 15 instrument presets, 8 historical temperaments, and two display modes (LED bar and Peterson-style strobe). The app runs fully offline with no account required and is sold as a one-time purchase with lifetime 1.x updates.
Problem
Browser and phone tuners introduce audio latency, downsampling, and signal degradation that make accurate pitch detection unreliable.
For
Musicians and instrumentalists using macOS, especially guitarists and bassists
How it works
The app sits directly on Core Audio, reads input from any USB interface or built-in mic at full sample rate, and runs the YIN algorithm to display pitch in real time with sub-50ms latency.
Business model
one-time
Status
launched