# ScaleHelper vs EGK CTransposer

The clearest difference is in-app purchases: EGK CTransposer at none against ScaleHelper's 11. EGK CTransposer also leads on price ($3.99 vs $5.99). ScaleHelper's advantage is update cadence (monthly vs every 7 months) and iOS requirement (15.0 vs 18.5). On ads and device support there is nothing between them.

ScaleHelper costs $5.99 and EGK CTransposer $3.99 up front. ScaleHelper sells 11 one-off in-app purchases. EGK CTransposer asks for nothing beyond the download.

ScaleHelper ships an update monthly, EGK CTransposer every 7 months. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | ScaleHelper | EGK CTransposer |
| --- | --- | --- |
| Price | $5.99 | **$3.99** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Paid | — |
| Size | 9 MB | 5 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Williams](https://appshunter.io/developer/1792912830) | [Isaac Eng Gian Khor](https://appshunter.io/developer/1808933315) |

## 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 |


### EGK CTransposer

[App page](https://appshunter.io/ios/app/egk-ctransposer/id6748041656)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ScaleHelper free?

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

### Is EGK CTransposer free?

EGK CTransposer costs $3.99, with no in-app purchases.

### Do ScaleHelper or EGK CTransposer have ads?

Neither ScaleHelper nor EGK CTransposer shows ads.

### Which is updated more often, ScaleHelper or EGK CTransposer?

ScaleHelper ships an update monthly, and EGK CTransposer every 7 months. Most recently, ScaleHelper was updated on September 14, 2026 and EGK CTransposer on September 24, 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.*