Comparison

iImprov vs Functional Ear Trainer

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

Head to head
About

iImprov

This app offers a visual and audio reference for jazz improvisation scales and chords. It helps users train their ear by presenting chord qualities, recommended scales, and audio playback. Users can select clefs, transpose for their instrument, and view scales and chords in any key.

Highlights
  • Visual and audio scale/chord reference
  • Ear training tool
  • Organizes 25 chord qualities
  • Key selection wheel
  • Recommended scales for chords
  • Audio playback of chords and scales
  • Bass/treble clef selection
  • Instrument transposition
Features
Read full description

iImprov - Chord/Scale Compendium Overview The iImprov - Chord/Scale Compendium is an easy to use reference app that provides a visual and audio representation of the most useful scale to chord choices for jazz improvisation. In addition to being a great reference, iImprov -Chord/Scale Compendium is also a valuable ear training tool for learning the different scale and chord colors. The app organizes 25 different chord qualities into three families: Major, Minor, and Dominant. When a specific chord quality is selected, that chord is displayed in standard notation along with a key selection wheel. Depending on the chord, from 1 to 5 scales are recommended. The Fast Forward button cycles through these recommendations, and the Play button plays the currently selected chord and scale. For ease of recognition, the chords are displayed in close position (stacked 3rds), but the chord is sounded with a more practical voicing that might be encountered in a playing situation. As with other apps from JazzAppsMoblie, bass or treble clef can be selected, as well as the appropriate transposition for your instrument. All scales and chords may be presented in any key.

About

Functional Ear Trainer

Develop your musical ear by learning to recognize tones within the context of a specific musical key. This app helps you understand the function of each note, improving your ability to transcribe, improvise, and play music by ear. Suitable for all ages and skill levels, with just 10 minutes of daily practice.

Highlights
  • Recognize tones in musical key context
  • Understand note function
  • Improve transcription skills
  • Enhance improvisation
  • Develop perfect pitch
  • Daily 10-minute practice
Features
Read full description

Have you (or maybe one of your friends) ever wanted to learn to transcribe or play music by ear? It is so important for a musician to know what you are hearing. A good musical ear helps when you are composing, improvising, transcribing melodies, or playing with others. Most likely you have already tried different programs to learn to recognize intervals or even to acquire perfect pitch. However, although such programs develop your ear, but can you actually play any melody you hear as soon as you listen to it? Imagine you could understand music... It is like when somebody is talking to you, you not only hear pleasant sounds, but you recognize words and their meaning. One day I came across Alain Benbassat's program called "Functional Ear Trainer" and have been using it ever since. It is based on Alain's method to learn to recognize tones. The main difference between the Functional Ear Trainer and other methods is that it teaches you to distinguish between tones in the context of a particular musical key. You begin to recognize the role (or function) of each tone in this key, which is incredibly similar to its role in other keys of the same scale. And it is *guaranteed* anyone can gradually develop this skill. It does not matter: - who you are - an absolute beginner in music or a virtuoso professional musician; - how old you are - a 3 yo kid or a 90+ adult; - what musical instrument you play (you don't even have to play one). The only requirement is to practice for 10 minutes a day. I was so excited about this ear trainer that I have developed a mobile app based on the Alain Benbassat method. I hope you will find it useful.

Screenshots

iImprov3 screens
Functional Ear Trainer4 screens

Verdict

The call

The clearest difference is price: Functional Ear Trainer at Free against iImprov's $0.99. Functional Ear Trainer also leads on rating (4.9 vs 3.7) and review sentiment (96% vs 67%). iImprov's advantage is in-app purchases (none vs 1) and iOS requirement (8.0 vs 15.0). On ads 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

Functional Ear Trainer is free to download; iImprov costs $0.99 up front. Functional Ear Trainer sells 1 one-off in-app purchase. iImprov asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Functional Ear Trainer holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: Functional Ear Trainer has 3.8K ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 67% of iImprov's written reviews are positive against 96% of Functional Ear Trainer's.

UpkeepUpdate frequency

iImprov ships an update every 24 months, Functional Ear Trainer every 7 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard8 real differences · 2 level
iImprov versus Functional Ear Trainer: the parameters behind the verdict, then further details
ParameteriImprovFunctional Ear Trainer
Price$0.99Free — better
Rating3.7 (23 ratings)4.9 (3.8K ratings) — better
Positive reviews66.7% of reviews96.2% of reviews — better
Number of ratings233.8K — better
Update frequencyEvery 24 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size12 MB41 MB
Age rating4+4+
DeveloperJazz Apps Mobile LLCSerhii Korchan

Customer experience

iImprov

All ratings23 ratings
Positive60.9%
Neutral4.3%
Negative34.8%
Written reviews18 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Functional Ear Trainer

All ratings3,749 ratings
Positive98.1%
Neutral0.8%
Negative1.1%
Written reviews627 reviews
Positive96.2%
Neutral1.9%
Negative1.9%

Bugs and requests

iImprov

Not enough reviews yet to summarise bugs or requests.

Functional Ear Trainer

Reported bugs

2 issues
  • Keyboard display issues when selecting all chromatic notes
  • Inconsistent note resolutions in some exercises

Requested features

5 requests
  • Add support for multiple notes/chords at once
  • Implement a mode for training key recognition
  • Provide more customization options for exercises
  • Include voice input to play the notes
  • Add support for German/Norwegian key names

In-app purchases

None

iImprov

No in-app purchases

1 purchases

Functional Ear Trainer

One-time1
  • Functional Ear Trainer Plus$19.99

Questions

Is iImprov free?
iImprov costs $0.99, with no in-app purchases.
Is Functional Ear Trainer free?
Functional Ear Trainer is free to download, with in-app purchases available.
Which has better reviews, iImprov or Functional Ear Trainer?
Functional Ear Trainer is rated higher. iImprov averages 3.7 out of 5 from 23 ratings, while Functional Ear Trainer averages 4.9 from 3.8K ratings.
Do iImprov or Functional Ear Trainer have ads?
Neither iImprov nor Functional Ear Trainer shows ads.
Which is updated more often, iImprov or Functional Ear Trainer?
iImprov ships an update every 24 months, and Functional Ear Trainer every 7 months. Most recently, iImprov was updated on October 23, 2026 and Functional Ear Trainer on October 24, 2026.

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