Every musician should work on Ear Training (or Aural Training) and Interval Ear Training is a very important element of ear training. To put it very simply, you will learn to recognise the relationship between two notes (by distance), when they are played together or apart!

There are two types of interval listening, harmonic and melodic. In harmonic intervals the notes are played at the same time and in melodic the notes are played one after the other. Easy to remember: Melodic Intervals make melody, Harmonic Intervals make harmony!

Many of you will probably want to understand how the names are found and how to work out the interval note names in every key. For this info you probably want to check out my ebook Practical Music Theory (available from which will explain all the theory related to this.

This app deals specifically with Interval Ear Training, both melodic and harmonic. It will start very easy and gradually get harder as you get more correct and can pass each stage. You can choose from Piano or Guitar Input for your answers, and you can chose to hear the notes and guitar or piano. Personally, I'd recommend getting used to both. In "Training Mode" you can select specific intervals to work on if you are struggling with just specific intervals or types of interval.

I'm sure you'll find this app very helpful, all you need to add is practice time!

Best wishes, Justin

What’s New

Version 2.08

Thanks to everyone for your feedback and ideas for the app. This update includes a new link to the 'how to use' video on

Ratings and Reviews

3.9 out of 5
30 Ratings
30 Ratings
9201 5606 71 ,

Easy to use and customizable

This has been a great app to learn intervals from. It has a training mode, which allows you to specify what intervals to train. I spend a lot of time using this feature for problem areas. I do wish this app had some additional / customization. I'd like to know at what pitch my ears start to waiver and it would be great to specify a pitch range in training mode.

Side note: I had a lot of issues being successful with this app until I started using mnemonics. Search for ear training mnemonics. There are a lot of good suggestions out there.

Rballron ,

Use in conjunction with Justin's web site

To take full advantage of this, you should first watch the videos on JustinGuitar and then work with the app at the corresponding level. Without the videos, it would be very difficult and frustrating to train the ear. However, when you couple the videos reference to a song that starts with the root and the major third, it helps your mind remember that interval and then the app is a super resource to drilling it home.

23 year old 999 ,

Learning musician

Ten minutes in and I think this app is amazing and I have already justified the two dollars for its amazing services. It i very nice to receive such incredible high quality programming and lesson giving together- Justin you freaking rock! I recommend this app with the highest of honors, could not be happier with how well this app will be able to take me to where I want to be musically.


Justin Guitar Ltd
47.8 MB

Requires iOS 10.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© JustinGuitar Ltd


  • Family Sharing

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

More By This Developer

You May Also Like