hearEQ builds your EQ skills to professional levels using custom ear training exercises, created just for you from your favorite songs. Simple, powerful, and fast, hearEQ is perfect for ear training on the go. Named one of "The best iPhone and iPad apps for musicians" (, here's what the experts have to say about hearEQ:

"When I found hearEQ, I knew this was a game-changer. From the ease of use and the ability to use your own music selections, hearEQ is perfectly designed to be the go-to choice for developing your ear. My students have shown tremendous improvements in mixing and productions, and I completely attribute this to hearEQ. Thanks Ten Kettles! Keep up the great work. You are making a difference!" -Chandler Bridges, Ph.D., Professor (The Los Angeles Film School); Audio engineer (Will Smith, Aaliyah, Johnny Mathis, P-Diddy, J-Lo, Bette Midler, LeAnn Rimes, and more) with two Grammy-winning albums.

“After half an hour with the app I had a noticeable improvement to my score, but I was also thinking in much clearer terms too!” -Tim Webb,

“This handy app is one of the greatest tools I've seen for helping you hear exactly how EQ adjustments affect your sound. Wish I would have had this when I was first learning how to mix live sound.” -James Wasem,

"hearEQ…makes the experience of ear training enjoyable enough to seem like fun. [It's] a great educational tool." -Tom Flint, Sound on Sound: The World's Best Recording Technology Magazine

“The principle behind hearEQ is beautifully straightforward…even with a little repetition, things do start to improve and I suspect if you were to build some hearEQ into your daily musical routine, you would soon reap some positive benefits.” -John Walden,


Every frequency range has a color, a quality, a character. For sound engineers, musicians, and other enthusiasts, knowing how to apply this to an equalizer (EQ) can make a transformational change to your sound—whether you're mixing a live concert, a recording, or even playing music through iTunes. (VIDEO @

It's a simple app with a powerful promise: if you learn the qualities of each frequency band—for example, cutting 4kHz puts sound in the background—then you can make equalization work for you, and truly transform your sound into something professional and beautiful.

hearEQ uses your favorite songs on your device to create custom ear training exercises that a) teach you all about frequency bands, and b) help you really hone your EQ skills. A standard 10-band or 30-band* equalizer is used, just like you'd find in iTunes and on many professional sound mixers. Your song will be played back with a simple equalization applied—and you guess what it was!

> Was it really clear, maybe a bit hollow? Could be a 1000 Hz cut.

> Was it muddy? Maybe that's a 500 Hz boost.

> Was it really present, almost too in-your-face? Sounds like a 4kHz boost.

Ten questions, ten frequencies, and then you get a score. Want to focus on just a few frequency bands to start? You can do that too. Keep at it, and you'll be an EQ master in no time.

Want to learn more? Check out our site and the hearEQ video at

*The 30-band equalizer is part of the "Advanced EQ" module, available as an in-app purchase within hearEQ.

NOTE: hearEQ works with any unprotected track on your device, but access to protected tracks and cloud tracks (e.g., Apple Music) is not possible at this time. That said, hearEQ ships with a practice track built-in, so you'll be able to start EQing right away!

What’s New

Version 2.3.2

Hey! We're happy to say that hearEQ is now optimized for Apple's newest batch of iPhones. Questions or feedback? Get in touch anytime at alex[at]tenkettles[dot]com. -Alex

Ratings and Reviews

4.9 out of 5
278 Ratings

278 Ratings

HAPLO_76 ,

Right to the point. Love it.

Does exactly what it is intended for while keeping it simple and bug free. I especially like using songs from my own library for the learning process and the quizzes.

Edit: i have one request for the developer. Please allow the quiz to go beyond 10 questions so that i can enjoy songs from my library all the way through. I would pay extra to unlock a feature like that. That's how much of a difference i think it'll make in the experience.

Developer Response ,

Hey, thanks for the feedback! That could be a cool addition for a future version of the app; I can definitely see something like that working. I've got a couple other features in the pipeline for the next release(s), but I'll take a closer look at this idea too. Please feel free to get in touch with any future comments, feedback, or questions at alex[at]tenkettles[dot]com. Have a great week, -Alex

Sudara ,

This app is amazing...

I haven’t wanted to write an app review before using HearEQ. But I’m telling all my musician/audio friends about it, so it feels only fair!

I used to use Golden Ears back in the day for audio ear training. HearEQ is like what Golden Ears wanted to be when it grew up. Lean, mean, contextually applicable machine. The ability to load up your own music, actively train and quiz on is game-changing. Doing this while outside of the studio environment (my favorite place to assess mixes) is a dream.

Lots of thoughtful detail helps you train exactly what you want to train. I went straight to buy the advanced EQ module, IMO this should be priced at 30 bucks not 3. So valuable. And so hard :)

TenKettles/Alex is my hero. Thanks for making this, it’s directly responsible for improving my hearing and skill as an engineer.

Philbodjfjs ,

Great App

This app is perfect if you are trying to practice identifying frequencies and problem solving when it comes to EQ. Being able to practice with songs in your iTunes library is a nice feature as well. Another helpful feature that I discovered is using the 30 band EQ (upgrade) practice mode to identify where certain instruments sit in the mix. 5/5


Ten Kettles Inc.
44.5 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, Simplified Chinese, Spanish

Age Rating
Rated 4+
© 2014-2018 Ten Kettles Inc.
In-App Purchases
  1. Pink Noise $1.99
  2. Advanced EQ $2.99


  • Family Sharing

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

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