# Functional Ear Trainer vs Sing Scales

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.

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.

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.

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.

## The numbers

| Metric | Functional Ear Trainer | Sing Scales |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | [4.9 (3.7K ratings)](https://appshunter.io/ios/app/functional-ear-trainer/id1088761926/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sing-scales/id6455374649/reviews)** |
| Number of ratings | **3.7K** | 1 |
| Positive reviews | 96.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 9 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 41 MB | 5 MB |
| Requires iOS | **15.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Serhii Korchan](https://appshunter.io/developer/1088761925) | [SEQFX PTY LTD](https://appshunter.io/developer/1092841331) |

## What reviewers say

### Functional Ear Trainer

[App page](https://appshunter.io/ios/app/functional-ear-trainer/id1088761926)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Functional Ear Trainer Plus | $19.99 | one-time |

**What reviewers like**

- 🚀 Effective ear training
- 👍 Simple and intuitive interface
- 💡 Customizable exercises
- 🎉 Noticeable improvement with regular practice
- 🎨 Visually appealing design

**What reviewers complain about**

- 🐛 Occasional audio glitches
- 💡 Lack of support for other instruments besides piano
- 💡 Desire for more advanced features (e.g. chord recognition)

**Reported bugs**

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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/sing-scales/id6455374649)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*