# ScaleHelper vs Quartet 6

The clearest difference is price: ScaleHelper at $5.99 against Quartet 6's $16.99. Quartet 6's advantage is in-app purchases (none vs 11) and review sentiment (100% vs 80%). On ads, monetization model, device support and iOS requirement there is nothing between them.

ScaleHelper costs $5.99 and Quartet 6 $16.99 up front. ScaleHelper sells 11 one-off in-app purchases. Quartet 6 asks for nothing beyond the download.

ScaleHelper ships an update monthly, Quartet 6 every 2 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ScaleHelper | Quartet 6 |
| --- | --- | --- |
| Price | **$5.99** | $16.99 |
| Rating | — | **[5.0 (24 ratings)](https://appshunter.io/ios/app/quartet-6/id6753187058/reviews)** |
| Number of ratings | — | **24** |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 9 MB | 522 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Williams](https://appshunter.io/developer/1792912830) | [UK Music Apps Ltd](https://appshunter.io/developer/579320222) |

## What reviewers say

### ScaleHelper

[App page](https://appshunter.io/ios/app/scalehelper/id552735530)

Improve your musical instrument playing with real-time feedback on your performance. Practice scales, arpeggios, and other exercises with scoring and audio playback. Prepare for exams with customizable challenges and support for multiple instruments and users.

**Highlights:** Real-time performance scoring, Audio playback of notes and performance, Practice any scale or choose specific exercises, Exam preparation with challenge modes, Support for multiple instruments and users, Customizable syllabus creation, Save and share recordings

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Violin ABRSM G8 | $0.99 | one-time |
| Cello TRINITY G1 to G3 | $0.99 | one-time |
| Flute TRINITY G1 to G3 | $0.99 | one-time |
| Viola ABRSM G6 | $0.99 | one-time |
| Viola ABRSM G7 | $0.99 | one-time |
| Viola ABRSM G8 | $0.99 | one-time |
| Violin ABRSM G1 to G3 | $0.99 | one-time |
| Clarinet ABRSM G1 to G8 | $2.99 | one-time |
| Violin ABRSM G1 to G8 | $2.99 | one-time |
| Flute ABRSM G1 to G8 | $2.99 | one-time |
| Cello ABRSM G1 to G8 | $2.99 | one-time |


### Quartet 6

[App page](https://appshunter.io/ios/app/quartet-6/id6753187058)

Enhance your jazz performance with a vast library of live-recorded standards. Mute your instrument to play along, change keys, adjust tempo, and loop sections for focused practice. Features animated chord diagrams and royalty-free multitrack exports for further development.

**Highlights:** Live jazz standards play-along, Mute instrument tracks, Adjustable tempo and key, Looping practice sections, Animated chord diagrams, Multitrack audio export, Royalty-free content

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ScaleHelper free?

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

### Is Quartet 6 free?

Quartet 6 costs $16.99, with no in-app purchases.

### Do ScaleHelper or Quartet 6 have ads?

Neither ScaleHelper nor Quartet 6 shows ads.

### Which is updated more often, ScaleHelper or Quartet 6?

ScaleHelper ships an update monthly, and Quartet 6 every 2 weeks. Most recently, ScaleHelper was updated on October 29, 2026 and Quartet 6 on October 30, 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.*