Crow Summit Tuner

Coming soon to the App Store and Google Play

A completely free chromatic tuner from Crow Summit Music. No ads, subscriptions, in-app purchases, or account required.

Play one note. See whether it’s flat, sharp, or right in tune. A bold analog gauge and large, clear readings make tuning easy to follow.

Chromatic note, octave, and signed cents, with frequency on iPhone and iPad
Standalone Apple Watch tuning using the watch’s own microphone
Adjustable concert A reference: 415–466 Hz
Microphone audio processed on your device
Old paper, mountain scenery, and Crow Summit Music artwork

Live iPhone tuning: B3 at minus 5 cents and 246.2 Hz, with an In tune reading — iPhone · live tuning · B3 at −5 cents

Upright iPad tuner screen with the analog gauge and vintage crow wilderness artwork — iPad

Tune right on your wrist

Crow Summit Tuner works directly on Apple Watch. Play a note and see its name, cents, and analog gauge—your iPhone doesn’t need to be nearby.

These are actual screenshots from an Apple Watch Series 11, including a live reading from an unplugged electric guitar.

Apple Watch tuner detecting G3 at minus 3 cents, with a green In tune reading and analog needle — Live tuning · G3 at −3 cents

Apple Watch tuner ready to start, with note and cents displays, an analog gauge, Start tuning button, and settings gear — Ready when you are

Tap the gear to change concert A from 415 to 466 Hz using the Digital Crown or the plus and minus buttons.

iPhone, iPad, and Apple Watch version coming soon to the App Store. Android coming soon to Google Play.

Support

Contact support for help. Include the app name, your device model, and a description of the problem. Please do not send passwords or payment information.

To tune, tap Start tuning, allow microphone access, and play one sustained note near your device. Play one note at a time. Concert A can be adjusted from 415 to 466 Hz. The detection range is 40–2000 Hz.

If microphone access was denied, enable it for Crow Summit Tuner in your device’s Settings. Move closer to quiet instruments and reduce nearby noise.

Privacy policy

Updated October 7, 2026. This policy covers Crow Summit Tuner, developed by Vernon Hendricks.

Microphone audio

The app uses your microphone only after you tap Start tuning and grant permission. Audio is processed in memory on your device to estimate pitch. The app does not save audio recordings or transmit microphone audio. Recording stops when you tap Stop tuning or the app enters the background.

Data and advertising

Crow Summit Tuner does not collect or transmit personal data, use advertising or analytics services, track you across apps or websites, or require an account. Calibration and tuning readings are held locally during use.

Support and this website

If you email support, we receive the contact details and information you choose to send and use them to respond. This website is hosted using Google Firebase, which may process technical request information to deliver and protect the website. We have not added website advertising or analytics.

Your choices

You can revoke microphone permission in your device’s Settings. Use Contact support with privacy questions or requests concerning information you sent to support.