See the nearest note and how far your pitch is above or below it.
- Set the reference pitch with the 440 Hz or 442 Hz button, or use the slider.
- Choose Start microphone and allow access. The tuner shows the note, frequency and pitch difference.
- Adjust input sensitivity with the vertical control on the right. Choose Stop microphone when you finish.
Audio is processed on your device. It is never recorded or sent to a server.
The detection range is 25–2000 Hz. Accuracy depends on your microphone and background noise.
The microphone stops when you leave this page or put the app in the background.