# ScaleMaster Pro vs Ember

The clearest difference is review sentiment: Ember at 100% against ScaleMaster Pro's 42%. Ember also leads on price ($1.99 vs $4.99) and update cadence (monthly vs every 2 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

ScaleMaster Pro costs $4.99 and Ember $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ScaleMaster Pro ships an update every 2 months, Ember monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | ScaleMaster Pro | Ember |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ember-overdrive-distortion/id6788960282/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 41.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 26 MB | 17 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [RoGame Software](https://appshunter.io/developer/285831223) | [Joshua Rideout](https://appshunter.io/developer/1862462443) |

## What reviewers say

### ScaleMaster Pro

[App page](https://appshunter.io/ios/app/scalemaster-pro/id1163225590)

Learn musical scales on your instrument with visual aids and adjustable tempo. Explore different scales, save your practice sessions, and discover new sounds for improvisation. Adapts to various instruments and tunings.

**Highlights:** Learn scales in notation and on instrument, Adjustable tempo for practice, Save custom scale documents, Support for piano, guitar, bass, and more, Custom tunings, All common clefs for reading practice, Scale transposition

**Features:** Vision Pro support

**In-app purchases:** none


### Ember

[App page](https://appshunter.io/ios/app/ember-overdrive-distortion/id6788960282)

This app offers a versatile guitar drive experience, combining overdrive, fuzz, and compression into a single unit. It provides three distinct sound profiles and extensive control over tone, bite, and bias for studio or stage use.

**Highlights:** Integrated overdrive, fuzz, and compression, Three distinct sound voices: Warm, Drive, Ravage, Adjustable drive, tone, bite, and bias controls, AUv3 support for hosts like GarageBand and Logic Pro, MIDI learn for hands-free control, Standalone app for practice and recording

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ScaleMaster Pro free?

ScaleMaster Pro costs $4.99, with no in-app purchases.

### Is Ember free?

Ember costs $1.99, with no in-app purchases.

### Do ScaleMaster Pro or Ember have ads?

Neither ScaleMaster Pro nor Ember shows ads.

### Which is updated more often, ScaleMaster Pro or Ember?

ScaleMaster Pro ships an update every 2 months, and Ember monthly. Most recently, ScaleMaster Pro was updated on October 24, 2026 and Ember on October 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.*