# Sonofield Ear Trainer vs Polymeter

The clearest difference is review sentiment: Sonofield Ear Trainer at 89% against Polymeter's 0%. Sonofield Ear Trainer also leads on rating (4.9 vs 4.3) and update cadence (every 9 days vs every 3 months). Polymeter's advantage is monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sonofield Ear Trainer sells 4 one-off in-app purchases and Polymeter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Sonofield Ear Trainer holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Sonofield Ear Trainer has 376 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 89% of Sonofield Ear Trainer's written reviews are positive against 0% of Polymeter's.

Sonofield Ear Trainer ships an update every 9 days, Polymeter every 3 months. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Sonofield Ear Trainer | Polymeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (376 ratings)](https://appshunter.io/ios/app/sonofield-ear-trainer/id6740409139/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/polymeter-mixed-meters/id6756774115/reviews) |
| Number of ratings | **376** | 3 |
| Positive reviews | **88.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 105 MB | 5 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sonofield Ear Trainer Education Ltd.](https://appshunter.io/developer/1789801335) | [Jack Gruber](https://appshunter.io/developer/1262516427) |

## 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


### Polymeter

[App page](https://appshunter.io/ios/app/polymeter-mixed-meters/id6756774115)

This metronome helps musicians practice complex time signatures and changing meters without constant resets. Create custom sequences, save them as songs, and share with bandmates.

**Highlights:** Combine multiple time signatures, Reorder bars with drag & drop, Create custom meters, Save and recall song sequences, Share songs with other musicians

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Polymeter Pro | $4.99 | one-time |


## Frequently asked questions

### Is Sonofield Ear Trainer free?

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

### Is Polymeter free?

Polymeter is free to download, with in-app purchases available.

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

Sonofield Ear Trainer is rated higher. Sonofield Ear Trainer averages 4.9 out of 5 from 376 ratings, while Polymeter averages 4.3 from 3 ratings.

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

Neither Sonofield Ear Trainer nor Polymeter shows ads.

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

Sonofield Ear Trainer ships an update every 9 days, and Polymeter every 3 months. Most recently, Sonofield Ear Trainer was updated on September 24, 2026 and Polymeter on September 25, 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.*