# ScaleHelper vs Transposer Pro

The clearest difference is in-app purchases: Transposer Pro at none against ScaleHelper's 11. Transposer Pro also leads on price ($0.99 vs $5.99) and chart position (#194 vs unranked). ScaleHelper's advantage is update cadence (monthly vs every 11 months). On ads, device support and iOS requirement there is nothing between them.

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

ScaleHelper ships an update monthly, Transposer Pro every 11 months. The most recent releases landed on September 14, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | ScaleHelper | Transposer Pro |
| --- | --- | --- |
| Price | $5.99 | **$0.99** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Paid | — |
| Best chart rank | — | **#194** |
| Size | 9 MB | 3 MB |
| Requires iOS | **15.0** | 16.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Williams](https://appshunter.io/developer/1792912830) | [Matt Welch](https://appshunter.io/developer/1693016625) |

## 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 |


### Transposer Pro

[App page](https://appshunter.io/ios/app/transposer-pro/id6479720686)

**Currently charting:** #194 Top Paid · Music (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is ScaleHelper free?

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

### Is Transposer Pro free?

Transposer Pro costs $0.99, with no in-app purchases.

### Do ScaleHelper or Transposer Pro have ads?

Neither ScaleHelper nor Transposer Pro shows ads.

### Which is updated more often, ScaleHelper or Transposer Pro?

ScaleHelper ships an update monthly, and Transposer Pro every 11 months. Most recently, ScaleHelper was updated on September 14, 2026 and Transposer Pro on September 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.*