Sing Scales vs Sonofield Ear Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Extensive scale library (100+ scales)
- Configurable tempo and stepping patterns
- Interactive piano keyboard
- Designed for non-musicians
- Solfège syllable practice
- Ear training development
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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
Sonofield Ear Trainer
This app helps musicians develop their ear by focusing on the feeling of individual notes within a key, rather than traditional interval training. It uses sustained drones and offers various modes like identifying scale degrees, melodies, and singing exercises. The app adapts to your skill level with an intuitive interface and progression path.
- Feeling-based note recognition
- Scale degree identification
- Melody recognition training
- Singing exercises
- Hands-free training mode
- Interactive exploration instrument
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Sonofield Ear Trainer (SET) is a revolutionary ear training app designed to help you intuitively play the melodies you hear and imagine. Instead of relying on traditional old methods like intervals, SET focuses on helping you feel the unique character of each note within a key. By using sustained drones to create a tonal foundation, you’ll learn to recognize scale degrees based on their *feeling*, not just how they sound. The app offers a variety of ways to train: * Degrees Mode - Identify individual notes against the drone by feeling. The heart of SET. * Melody Mode - Identify short melodic phrases, preparing you for real music. * Voice Mode - Sing the requested scale degree into your microphone. * Pocket Mode - Hands-free training for when you're on the go. * Free Play - An interactive instrument for exploration. With its intuitive, color-coded interface, thoughtfully designed progression path, and multiple difficulty levels, SET adapts to your skill level while keeping practice engaging. Whether you're a beginner or an experienced musician, SET is your guide to unlocking true musical fluency through intuitive, feeling-based ear training. No ads or forced payments. The free version contains full foundations for feeling-based ear training. Download the ear training app now!
Screenshots
Verdict
The clearest difference is price: Sonofield Ear Trainer at Free against Sing Scales's $5.99. Sonofield Ear Trainer also leads on update cadence (every 9 days vs every 9 months) and ratings volume (376 vs 1). Sing Scales's advantage is in-app purchases (none vs 5) and review sentiment (100% vs 89%). On rating 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
Sonofield Ear Trainer is free to download; Sing Scales costs $5.99 up front. Sonofield Ear Trainer sells 4 one-off in-app purchases. Sing Scales asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Sing Scales against 4.9 for Sonofield Ear Trainer. That said, the two scores are not equally well evidenced: Sonofield Ear Trainer has 376 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 100% of Sing Scales's written reviews are positive against 89% of Sonofield Ear Trainer's.
Sing Scales ships an update every 9 months, Sonofield Ear Trainer every 9 days. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.
| Parameter | Sing Scales | Sonofield Ear Trainer |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 4.9 (376 ratings) |
| Positive reviews | 100.0% of reviews — better | 88.7% of reviews |
| Number of ratings | 1 | 376 — better |
| Update frequency | Every 9 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | SEQFX PTY LTD | Sonofield Ear Trainer Education Ltd. |
Customer experience
Sing Scales
Sonofield Ear Trainer
Bugs and requests
Sing Scales
Not enough reviews yet to summarise bugs or requests.
Sonofield Ear Trainer
Reported bugs
1 issue- None reported
Requested features
5 requests- Option to switch between 12TET and just intonation
- Ability to reduce octave range
- Incorporate more timbre options for drone and notes
- Tracking and visualization of progress and learned skills
- Add interactive tutorial for level 1
In-app purchases
Sing Scales
No in-app purchases
Sonofield Ear Trainer
- Lifetime Pro$14.99
- Lifetime Pro$17.99
- Lifetime Pro2 variants$19.99
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- Lifetime Pro$24.99
Questions
Is Sing Scales free?
Is Sonofield Ear Trainer free?
Which has better reviews, Sing Scales or Sonofield Ear Trainer?
Do Sing Scales or Sonofield Ear Trainer have ads?
Which is updated more often, Sing Scales or Sonofield Ear Trainer?
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