Comparison

Functional Ear Trainer vs Sing Scales

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

Head to head
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.

About

Sing Scales

Practice singing musical scales with a comprehensive library and interactive piano. Designed for beginners, it helps develop vocal control, ear training, and confidence. Master pitch and vocal flexibility through experimentation.

Highlights
  • Extensive scale library (100+ scales)
  • Configurable tempo and stepping patterns
  • Interactive piano keyboard
  • Designed for non-musicians
  • Solfège syllable practice
  • Ear training development
Features
Read full description

Practice the most fundamental yet creatively challenging art of singing musical scales. Voice training fine tunes the larynx and its vocal cords towards producing and sustaining consistent sound frequencies. Extensive scale library offers: — 100+ common scales — tempo setting — configurable scale stepping pattern BUILT FOR NON-MUSICIANS* The Sing Scales app is purposefully built with non-musicians in mind. The user interface is designed to present musical scales in an interactive manner. The user gradually acquires understanding through experimentation. The app doesn’t expect the user to have pre-existing knowledge of music theory. Singing scales is just one piano key tap away — make the lowest naturally comfortable “Do” sound, tap on the highlighted piano key and start singing the scale right away. It doesn’t have to be more complicated than that. * Musicians are welcome too, scales are for everyone! DOMAIN OF APPLICATION Singing musical scales is a foundational skill required to build one’s vocal and hearing faculties. The skill is immensely beneficial for a number of activities: – mastering the art of musical improvisation – ear training – self-development work on building confident and flexible voice – therapeutical applications that use voice work as the medium Ear training is a natural outcome of singing scales. Once one acquires the feeling of producing a certain pitch, a link to the hearing faculty is being established. WHY SING SCALES? What’s so unique about signing musical scales? Why not just learn to sing songs? It’s much easier to produce relative pitches than to be exact with one’s voice modulation. Learning to sing songs or whistling melodies is an exercise in relative perception. One can produce interesting results but foundational skill building would be missed. The true command of one’s voice and its connectedness to musical hearing begins from the ability to answer questions like: “What note am I voicing right now?” “How can I make a correct Fa pitch?” “What is the interval between the two notes I am hearing?” It’s a challenge worth pursuing! TECHNIQUE OVERVIEW The Sing Scales app is a flexible voice measurement tool. The user can practice singing solfège syllables of Do-Re-Mi-Fa-Sol-La-Ti or any sequence of syllables of choice. For example, singing a scale in La-La-La requires a superb tuning of one’s vocal cords. RICH LIBRARY OF MUSICAL SCALES The app comes with a significant library of more than 100 known scales. Each scale can be played back in any key. A piano keyboard is also provided for interactive scale exploration. The full list of provided scale classes is as follows: Major, Minor, Harmonic Minor, Melodic Minor, Natural Minor, Ionian, Aeolian, Dorian, Mixolydian, Phrygian, Ultraphrygian, Lydian, Locrian, Super Locrian, Chromatic, Whole, Altered, Augmented, Dominant 7th, Half Diminished, Leading Whole Tone, Diminished Whole Tone, Overtone, Nine Tone, Diatonic, Enigmatic, Double Harmonic, Auxiliary Diminished, Six Tone Symmetrical, Neopolitan, Prometheus, Pelog, Pentatonic Major, Jazz Melodic Minor, Spanish Gypsy, Eight Tone Spanish, Hungarian Major, Romanian Minor, Flamenco, Gypsy, Bebop Dominant, Chinese, Oriental, Hirajoshi, Ichikosucho, Kumoi, Yo, Iwato, Mongolian, Hindu, Byzantine, Arabian, Persian, Mohammedan, Maqam, Algerian, Balinese, Purvi Theta, Todi Theta, Tritone, Insen, Istrian, Pfluke, Ukrainian Dorian, Hawaiian, Man Gong, Ritsusen. NECESSARY TECHNICALITIES… Sections below will talk about how the app handles your data and will provide some essential online links. YOUR DATA The Sing Scales app does NOT collect any of your personal data. The app does NOT require an account creation. TERMS, CONDITIONS & PRIVACY For the terms and conditions please visit: https://seqfx.com/sing-scales-voice-training/tos For the privacy policy please visit: https://seqfx.com/sing-scales-voice-training/privacy

Screenshots

Functional Ear Trainer4 screens
Sing Scales4 screens

Verdict

The call

The clearest difference is price: Functional Ear Trainer at Free against Sing Scales's $5.99. Functional Ear Trainer also leads on ratings volume (3.7K vs 1) and device support (3 vs 1). Sing Scales's advantage is in-app purchases (none vs 1). On rating, review sentiment, update cadence and ads 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; Sing Scales costs $5.99 up front. Functional Ear Trainer sells 1 one-off in-app purchase. Sing Scales asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Functional Ear Trainer against 5.0 for Sing Scales. That said, the two scores are not equally well evidenced: Functional Ear Trainer has 3.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 96% of Functional Ear Trainer's written reviews are positive against 100% of Sing Scales's.

UpkeepUpdate frequency

Functional Ear Trainer ships an update every 7 months, Sing Scales every 9 months. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

Scorecard5 real differences · 5 level
Functional Ear Trainer versus Sing Scales: the parameters behind the verdict, then further details
ParameterFunctional Ear TrainerSing Scales
PriceFree — better$5.99
Rating4.9 (3.7K ratings)5.0 (1 ratings) — better
Positive reviews96.2% of reviews100.0% of reviews — better
Number of ratings3.7K — better1
Update frequencyEvery 7 months — betterEvery 9 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.1
Further details — not scored
Size41 MB5 MB
Age rating4+4+
DeveloperSerhii KorchanSEQFX PTY LTD

Customer experience

Functional Ear Trainer

All ratings3,749 ratings
Positive98.1%
Neutral0.8%
Negative1.1%
Written reviews612 reviews
Positive96.2%
Neutral1.8%
Negative2.0%

Sing Scales

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and 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

Sing Scales

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Functional Ear Trainer

One-time1
  • Functional Ear Trainer Plus$19.99
None

Sing Scales

No in-app purchases

Questions

Is Functional Ear Trainer free?
Functional Ear Trainer is free to download, with in-app purchases available.
Is Sing Scales free?
Sing Scales costs $5.99, with no in-app purchases.
Which has better reviews, Functional Ear Trainer or Sing Scales?
Sing Scales is rated higher. Functional Ear Trainer averages 4.9 out of 5 from 3.7K ratings, while Sing Scales averages 5.0 from 1 ratings.
Do Functional Ear Trainer or Sing Scales have ads?
Neither Functional Ear Trainer nor Sing Scales shows ads.
Which is updated more often, Functional Ear Trainer or Sing Scales?
Functional Ear Trainer ships an update every 7 months, and Sing Scales every 9 months. Most recently, Functional Ear Trainer was updated on September 25, 2026 and Sing Scales on September 18, 2026.

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