Comparison

Interval Ear Trainer vs Chord X

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Interval Ear Trainer

Improve your musical ear by learning to identify the distance between two notes. Practice both harmonic (played together) and melodic (played sequentially) intervals. Gradually progress through difficulty levels with piano or guitar input options.

Highlights
  • Melodic interval training
  • Harmonic interval training
  • Gradual difficulty progression
  • Piano or guitar input
  • Select specific intervals to practice
Features
Read full description

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 justinguitar.com) 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

About

Chord X

Enhance your guitar chord recognition skills with this ear training app. It features a high-quality audio library, adaptive difficulty, detailed performance statistics, and custom level design to help you master chords.

Highlights
  • High-quality audio library
  • Adaptive difficulty levels
  • Detailed performance statistics
  • Custom level designer
  • Real guitar recordings
Features
Read full description

Unlock your true potential as a guitarist with our revolutionary chord progression ear training app. Whether you're a beginner looking to enhance your chord recognition skills or a seasoned pro aiming to sharpen your expertise, this app is your ideal practice partner. Here's why you need to get your hands on it now: High-Quality Audio Library: Step into a world of authentic guitar sounds! Our app boasts a rich audio library of chords meticulously recorded on real guitars. Immerse yourself in the full, resonant tones of acoustic and electric guitars, capturing every nuance and timbre. You'll learn to distinguish between chords with ease and precision. Adaptive Difficulty: Our app evolves with you, ensuring you're always challenged but never overwhelmed. As you progress, the app adapts to your skill level, gradually increasing the complexity of chord recognition exercises. It's the perfect tool to guide beginners and challenge advanced players. Detailed Performance Statistics: Track your growth like never before! Dive into comprehensive statistics that analyze your chord recognition performance. Identify your strengths, pinpoint areas for improvement, and fine-tune your practice for maximum efficiency. With detailed insights at your fingertips, you'll master chord recognition faster than ever. Custom Level Designer: Take control of your learning journey! Our app empowers you to create custom training levels, tailoring exercises to your specific needs and preferences. Design exercises that focus on the chords you want to master or target your weak spots with precision. The power is in your hands. Why Choose Our Chord Recognition Ear Training App? + Unparalleled sound quality with real guitar recordings. + A dynamic and adaptive learning experience. + In-depth performance tracking for continuous improvement. + Customization options to suit your unique learning path. + User-friendly interface for a seamless experience. Elevate your guitar skills to the next level with the Chord Recognition Ear Training App for Guitarists. Don't miss out on this incredible learning opportunity. Download it now and unlock the secrets of chord recognition mastery! Get ready to strum your way to greatness – start your journey today!

Screenshots

Interval Ear Trainer4 screens
Chord X4 screens

Verdict

The call

The clearest difference is price: Chord X at Free against Interval Ear Trainer's $1.99. Chord X also leads on update cadence (every 6 weeks vs every 13 months) and rating (4.2 vs 3.9). Interval Ear Trainer's advantage is in-app purchases (none vs 3) and ads (none vs shown). On review sentiment and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Chord X is free to download; Interval Ear Trainer costs $1.99 up front. Chord X sells 3 one-off in-app purchases. Interval Ear Trainer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chord X holds the better App Store score, 4.2 against 3.9. That said, the two scores are not equally well evidenced: Interval Ear Trainer has 44 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 67% of Interval Ear Trainer's written reviews are positive against 60% of Chord X's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Interval Ear Trainer ships an update every 13 months, Chord X every 6 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 2 level
Interval Ear Trainer versus Chord X: the parameters behind the verdict, then further details
ParameterInterval Ear TrainerChord X
Price$1.99Free — better
Rating3.9 (44 ratings)4.2 (5 ratings) — better
Positive reviews66.7% of reviews — better60.0% of reviews
Number of ratings44 — better5
Update frequencyEvery 13 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.3 — better12.0
Further details — not scored
Size72 MB127 MB
Age rating4+4+
DeveloperJustin GuitarLev Tyrnov

Customer experience

Interval Ear Trainer

All ratings44 ratings
Positive70.5%
Neutral11.4%
Negative18.2%
Written reviews57 reviews
Positive66.7%
Neutral8.8%
Negative24.6%

Chord X

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral40.0%
Negative0.0%

Bugs and requests

Interval Ear Trainer

Reported bugs

6 issues
  • Does not respond to touch input
  • Not working on iOS 11
  • Cannot ster back after mistake
  • Piano input is wrong
  • Melodic interval comes out mistimed
Show 1 more
  • App crashes or freezes (implied by 'not working')

Requested features

14 requests
  • Option to replay missed intervals
  • Option to keep root note the same
  • Automatic mode for interval playback
  • Adjustable delay for answer reveal
  • Configurable time between interval plays
Show 9 more
  • Add solmization syllables (Do Re Mi)
  • Allow turning off game interface
  • Specify pitch range in training mode
  • Specify a single root note
  • Add landscape rotation
  • Allow going back to adjust level
  • Improve harmonic interval sound quality
  • Add tempo change for melodic intervals
  • Update for iOS 11

Chord X

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Interval Ear Trainer

No in-app purchases

3 purchases

Chord X

One-time3
  • Acoustic Dream$1.49
  • Piano Man$1.49
  • Chord X Premium$4.99

Questions

Is Interval Ear Trainer free?
Interval Ear Trainer costs $1.99, with no in-app purchases.
Is Chord X free?
Chord X is free to download, with in-app purchases available.
Which has better reviews, Interval Ear Trainer or Chord X?
Chord X is rated higher. Interval Ear Trainer averages 3.9 out of 5 from 44 ratings, while Chord X averages 4.2 from 5 ratings.
Do Interval Ear Trainer or Chord X have ads?
Chord X shows ads; Interval Ear Trainer does not.
Which is updated more often, Interval Ear Trainer or Chord X?
Interval Ear Trainer ships an update every 13 months, and Chord X every 6 weeks. Most recently, Interval Ear Trainer was updated on November 6, 2026 and Chord X on November 3, 2026.

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