# iHarmony vs Jazz ScaleHelper

The clearest difference is in-app purchases: iHarmony at none against Jazz ScaleHelper's 11. iHarmony also leads on review sentiment (77% vs 50%) and price ($0.99 vs $5.99). Jazz ScaleHelper's advantage is iOS requirement (15.0 vs 26.0). On update cadence, ads, monetization model and device support there is nothing between them.

iHarmony costs $0.99 and Jazz ScaleHelper $5.99 up front. Jazz ScaleHelper sells 11 one-off in-app purchases. iHarmony asks for nothing beyond the download.

iHarmony ships an update every 5 weeks, Jazz ScaleHelper every 6 weeks. The most recent releases landed on November 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | iHarmony | Jazz ScaleHelper |
| --- | --- | --- |
| Price | **$0.99** | $5.99 |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/iharmony/id292413210/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | **77.3% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Paid | Paid |
| Size | 13 MB | 9 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Alberto De Bortoli](https://appshunter.io/developer/292413213) | [Richard Williams](https://appshunter.io/developer/1792912830) |

## What reviewers say

### iHarmony

[App page](https://appshunter.io/ios/app/iharmony/id292413210)

This music theory reference app provides instant access to scales, chords, and harmonizations with audio playback. It supports multiple notation systems and offline use, making it a comprehensive tool for musicians of all levels.

**Highlights:** 1500+ scales, chords, and harmonizations, Chord harmonizations for every scale, Audio playback for every entry, Four notation systems, Full-text search, Offline functionality

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

**In-app purchases:** none

**What reviewers like**

- 👍 Quick and easy to use
- 🎶 Great for learning scales and chords
- 💡 Useful for songwriting and composition
- 🎵 Provides audio playback of scales/chords
- 📚 Comprehensive music theory reference

**What reviewers complain about**

- ❌ Audio issues (no sound, distorted sound)
- 🎛️ Some incorrect notation/spelling
- 🎨 Outdated UI/design
- ❓ Confusing navigation/layout
- 🔊 Sound not matching notes

**Reported bugs**

- Audio not working on iPhone
- Database null error
- Speaker distortion at high volume
- Playback sounds stilted/uneven
- Info link works irregularly or doesn't appear

**Requested features**

- Save favorite scales
- Add more exotic scales
- Allow harmonic playback (all notes simultaneously)
- Provide other theory features (harmonic substitutions, polychords, inversions)
- Add a search function for chords/scales


### Jazz ScaleHelper

[App page](https://appshunter.io/ios/app/jazz-scalehelper/id567707566)

Improve your musical instrument playing with interactive exercises and real-time feedback. Practice scales, modes, and arpeggios with scoring and performance analysis. Ideal for exam preparation and general skill enhancement.

**Highlights:** Interactive scale and arpeggio practice, Real-time performance scoring, Multiple practice modes (play any, choose, challenge), Supports Trinity Guildhall and ABRSM syllabuses, Wide range of scales, modes, and arpeggios, Supports multiple instruments, Multi-user support with saved history

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Saxophone TRINITY G4 | $0.99 | one-time |
| Saxophone TRINITY G7 | $0.99 | one-time |
| Saxophone ABRSM G1 to G3 | $0.99 | one-time |
| Saxophone ABRSM G4 | $0.99 | one-time |
| Saxophone ABRSM G5 | $0.99 | one-time |
| Trumpet ABRSM G1 to G3 | $0.99 | one-time |
| Trumpet ABRSM G4 | $0.99 | one-time |
| Trumpet ABRSM G5 | $0.99 | one-time |
| Clarinet TRINITY G1 to G8 | $2.99 | one-time |
| Flute TRINITY G1 to G8 | $2.99 | one-time |
| Saxophone TRINITY G1 to G8 | $2.99 | one-time |


## Frequently asked questions

### Is iHarmony free?

iHarmony costs $0.99, with no in-app purchases.

### Is Jazz ScaleHelper free?

Jazz ScaleHelper costs $5.99, and also offers in-app purchases.

### Do iHarmony or Jazz ScaleHelper have ads?

Neither iHarmony nor Jazz ScaleHelper shows ads.

### Which is updated more often, iHarmony or Jazz ScaleHelper?

iHarmony ships an update every 5 weeks, and Jazz ScaleHelper every 6 weeks. Most recently, iHarmony was updated on November 1, 2026 and Jazz ScaleHelper on October 14, 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.*