Frequency Counter for macOS
FQC is a real-time frequency counter designed for measuring audio frequencies using your Mac's built-in microphone or connected audio devices.
Ideal for hobbyists, musicians, electronics enthusiasts, audio technicians, and anyone needing a simple way to identify frequencies and musical notes.
If you have questions, bug reports, feature requests, or feedback regarding FQC, please get in touch.
FQC does not collect personal data, analytics, or tracking information.