What's the Frequency? will help you to become a better audio engineer. It helps you to recognise the frequencies you are hearing.

Given short audio samples of pure tones or filtered noise you have to respond with the correct frequency of the tone, or the center frequency of the filtered noise. See how many you can get right in one go.

Start out easy, with octave spacing. When you feel more confident, move up to 1/3 octave spacing for a more challenging game.

Use What's the Frequency? for just a few minutes each day and you will notice an improvement in your ability to identify and label the frequencies in the sounds you hear. You'll become more efficient with an EQ. Your mixes are likely to improve. Most of all, you'll win the respect and admiration of fellow audio nerds.

What’s New

Version 2.0

A complete re-write of the app from scratch, including:
- A beautiful and completely new look, with wavy animations!
- A brand new audio engine with better filters
- A stunning dark mode
- The ability to exclude frequencies that can't be reproduced by your device, headphones, or speakers
- Full support for all device sizes and split view on iPads

Ratings and Reviews

3.3 out of 5
7 Ratings

7 Ratings

juygnbhu ,

Good, simple, easy to use

Fine for testing your ear-knowledge of frequencies. The only thing i wish for is that when you pick the correct frequency, the screen wouldn't change so fast; there's no time to see which frequency was the correct one! That or show the correct frequency on the next page.

@joeyjesus ,

Pretty good app man

This was actually really good lol it surprised me a lot and keeps your ears on point on which frequency is which, defiantly important specially for a music engineer 💯👍

Joe7291276292 ,


No fuss simple app. Works great, really helped me find feedback!

App Privacy

The developer, H Bourne, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You Might Also Like