# Sonofield Ear Trainer vs Interval

The clearest difference is in-app purchases: Interval at none against Sonofield Ear Trainer's 5. Interval also leads on review sentiment (100% vs 89%). Sonofield Ear Trainer's advantage is ratings volume (376 vs 1) and update cadence (every 9 days vs every 4 weeks). On price, rating, ads and device support there is nothing between them.

Both are free to download. Sonofield Ear Trainer sells 4 one-off in-app purchases. Interval asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Sonofield Ear Trainer against 5.0 for Interval. 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: 89% of Sonofield Ear Trainer's written reviews are positive against 100% of Interval's.

Sonofield Ear Trainer ships an update every 9 days, Interval every 4 weeks. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Sonofield Ear Trainer | Interval |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (376 ratings)](https://appshunter.io/ios/app/sonofield-ear-trainer/id6740409139/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/interval-music-practice/id6807088064/reviews)** |
| Number of ratings | **376** | 1 |
| Positive reviews | 88.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 4 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 105 MB | 25 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sonofield Ear Trainer Education Ltd.](https://appshunter.io/developer/1789801335) | [Bijan Pousti](https://appshunter.io/developer/6807088066) |

## What reviewers say

### Sonofield Ear Trainer

[App page](https://appshunter.io/ios/app/sonofield-ear-trainer/id6740409139)

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.

**Highlights:** Feeling-based note recognition, Scale degree identification, Melody recognition training, Singing exercises, Hands-free training mode, Interactive exploration instrument

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $14.99 | one-time |
| Lifetime Pro | $17.99 | one-time |
| Lifetime Pro | $19.99 | one-time |
| Lifetime Pro | $24.99 | one-time |

**What reviewers like**

- 🚀 Excellent ear training tool
- 👍 Intuitive and user-friendly design
- 🎶 Effective for improving relative pitch
- 💡 Innovative use of drone and scale degrees
- 🎯 Helpful for aural skills development

**What reviewers complain about**

- 🤔 Challenging for true beginners
- 💭 Desire for more customization options

**Reported bugs**

- None reported

**Requested features**

- 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


### Interval

[App page](https://appshunter.io/ios/app/interval-music-practice/id6807088064)

This app provides a comprehensive suite of tools for guitarists, including a tuner, metronome, drone, and theory resources. It automatically logs practice sessions, tracks progress, and offers insights into your development.

**Highlights:** Integrated tuner with alternate tunings, Metronome with customizable click sounds and volume, Drone in twelve keys, Note and voice memo recording, Scale, chord, and theory resources, Automatic practice session logging, Progress tracking and streak counting

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sonofield Ear Trainer free?

Sonofield Ear Trainer is free to download, with in-app purchases available.

### Is Interval free?

Interval is free to download, with no in-app purchases.

### Which has better reviews, Sonofield Ear Trainer or Interval?

Interval is rated higher. Sonofield Ear Trainer averages 4.9 out of 5 from 376 ratings, while Interval averages 5.0 from 1 ratings.

### Do Sonofield Ear Trainer or Interval have ads?

Neither Sonofield Ear Trainer nor Interval shows ads.

### Which is updated more often, Sonofield Ear Trainer or Interval?

Sonofield Ear Trainer ships an update every 9 days, and Interval every 4 weeks. Most recently, Sonofield Ear Trainer was updated on October 14, 2026 and Interval on October 1, 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.*