Support

How can we help?

Email [email protected], or use Send feedback in the app's Help page, which fills in your app and device version for us.

Common questions

The headphone check says I heard the tone in the wrong ear

Check that the earbuds are in the right ears (L and R), then turn off Mono Audio and spatial audio or head tracking, and center the left/right balance. On iPhone these are in Settings › Accessibility › Audio & Visual, and in Control Center for spatial audio. Some Bluetooth hearing devices mix the two ears.

The app asks me to match my volume every time (iPhone)

iOS doesn't let apps set the system volume, so the app shows a live readout and asks you to match the volume you set up with. That keeps your measurements comparable. On Android the app sets it for you.

Music pauses when I leave the app

Background play is part of Premium. On the free plan, music plays while the app is open.

I bought Premium but the app doesn't show it

In the app, open the Audio tab, tap Harmonic Premium, then Restore Purchase. Make sure you're online and signed in with the same Apple Account or Google account you bought with.

How do I cancel?

On iPhone or iPad: Settings › your name › Subscriptions. On Android: Google Play Store › your profile › Payments & subscriptions › Subscriptions. You keep all your results.

Can I move my results to a new phone?

Yes, through your phone's own backup and transfer (iCloud or a computer backup on iPhone, Google's backup or a phone-to-phone transfer on Android). Songs you imported may need to be added again on Android.

Researchers and clinicians

If you study hearing, pitch perception or diplacusis, or you're an audiologist whose patients have it, we'd like to hear from you, whether it's a correction to our pages or an idea for a study. Email [email protected].

More: FAQ · Privacy policy · Terms of use (Apple standard EULA)