# Jazz Licks Technique Harmony Improvisation Lessons vs Sonofield Ear Trainer

The clearest difference is update cadence: Sonofield Ear Trainer at every 9 days against Jazz Licks Technique Harmony Improvisation Lessons's every 12 months. Sonofield Ear Trainer also leads on ratings volume (387 vs 2). Jazz Licks Technique Harmony Improvisation Lessons's advantage is review sentiment (100% vs 89%) and iOS requirement (8.0 vs 13.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Jazz Licks Technique Harmony Improvisation Lessons sells 10 one-off in-app purchases and Sonofield Ear Trainer sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Jazz Licks Technique Harmony Improvisation Lessons against 4.9 for Sonofield Ear Trainer. That said, the two scores are not equally well evidenced: Sonofield Ear Trainer has 387 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 100% of Jazz Licks Technique Harmony Improvisation Lessons's written reviews are positive against 89% of Sonofield Ear Trainer's.

Jazz Licks Technique Harmony Improvisation Lessons ships an update every 12 months, Sonofield Ear Trainer every 9 days. The most recent releases landed on September 19, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Jazz Licks Technique Harmony Improvisation Lessons | Sonofield Ear Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/jazz-licks-technique-harmony-improvisation-lessons/id1097247356/reviews)** | [4.9 (387 ratings)](https://appshunter.io/ios/app/sonofield-ear-trainer/id6740409139/reviews) |
| Number of ratings | 2 | **387** |
| Positive reviews | **100.0% of reviews** | 88.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 96 MB | 105 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JazzHeaven.com](https://appshunter.io/developer/1097247355) | [Sonofield Ear Trainer Education Ltd.](https://appshunter.io/developer/1789801335) |

## What reviewers say

### Jazz Licks Technique Harmony Improvisation Lessons

[App page](https://appshunter.io/ios/app/jazz-licks-technique-harmony-improvisation-lessons/id1097247356)

Learn jazz improvisation and technique from renowned musicians through in-depth video lessons and interviews. Explore chord progressions, melodic concepts, and rhythmic approaches for all instruments. Access supplementary materials like PDFs and MP3s to enhance your practice.

**Highlights:** Masterclasses with jazz icons, In-depth video lessons, Interviews with musicians, PDFs and MP3s included, Play-along tracks, Lessons for all instruments

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gilad Hekselman: Jazz Guitar Polyphony (12 Month Access) | $29.99 | one-time |
| Kenny Werner: Effortless Mastery: The 4 Steps (12 Month Access) | $29.99 | one-time |
| Lage Lund: Jazz Guitar Chordal Vocabulary | $39.99 | one-time |
| Gilad Hekselman: Jazz Guitar Polyphony | $39.99 | one-time |
| Kenny Werner: Effortless Mastery: The 4 Steps | $39.99 | one-time |
| Kenny Werner: Effortless Mastery of Melody, Harmony & Rhythm | $39.99 | one-time |
| Jean-Michel Pilc: True Jazz Improvisation | $39.99 | one-time |
| Jean-Michel Pilc: Piano Playing: Transcending The Instrument | $39.99 | one-time |
| K. Werner Effortl Mastery Pack | $74.99 | one-time |
| Jerry Bergonzi Vol. 1+2+3 Pack | $109.99 | one-time |


### 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


## Frequently asked questions

### Is Jazz Licks Technique Harmony Improvisation Lessons free?

Jazz Licks Technique Harmony Improvisation Lessons is free to download, with in-app purchases available.

### Is Sonofield Ear Trainer free?

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

### Which has better reviews, Jazz Licks Technique Harmony Improvisation Lessons or Sonofield Ear Trainer?

Jazz Licks Technique Harmony Improvisation Lessons is rated higher. Jazz Licks Technique Harmony Improvisation Lessons averages 5.0 out of 5 from 2 ratings, while Sonofield Ear Trainer averages 4.9 from 387 ratings.

### Do Jazz Licks Technique Harmony Improvisation Lessons or Sonofield Ear Trainer have ads?

Neither Jazz Licks Technique Harmony Improvisation Lessons nor Sonofield Ear Trainer shows ads.

### Which is updated more often, Jazz Licks Technique Harmony Improvisation Lessons or Sonofield Ear Trainer?

Jazz Licks Technique Harmony Improvisation Lessons ships an update every 12 months, and Sonofield Ear Trainer every 9 days. Most recently, Jazz Licks Technique Harmony Improvisation Lessons was updated on September 19, 2026 and Sonofield Ear Trainer on October 22, 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.*