# ScaleGen vs EchoSketch

The clearest difference is update cadence: EchoSketch at every 2 days against ScaleGen's every 29 months. EchoSketch also leads on rating (5.0 vs 4.7) and device support (3 vs 1). ScaleGen's advantage is price ($3.99 vs $7.99) and ratings volume (12 vs 2). On ads, in-app purchases and monetization model there is nothing between them.

ScaleGen costs $3.99 and EchoSketch $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EchoSketch holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: ScaleGen has 12 ratings behind it against 2, so its average is the more settled of the two.

ScaleGen ships an update every 29 months, EchoSketch every 2 days. The most recent releases landed on September 27, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ScaleGen | EchoSketch |
| --- | --- | --- |
| Price | **$3.99** | $7.99 |
| Rating | [4.7 (12 ratings)](https://appshunter.io/ios/app/scalegen/id908056629/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/echosketch-performance-delay/id6794466741/reviews)** |
| Number of ratings | **12** | 2 |
| Positive reviews | 70.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 14 MB | 5 MB |
| Requires iOS | **10.0** | 17 |
| Devices | iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Gestrument AB](https://appshunter.io/developer/576235485) | [Avi Bortnick](https://appshunter.io/developer/421929037) |

## What reviewers say

### ScaleGen

[App page](https://appshunter.io/ios/app/scalegen/id908056629)

Generate and edit musical scales with intricate detail. Explore traditional and experimental tunings, audition your creations, and export them as MIDI files or to other applications. Ideal for composers and students seeking to expand their musical horizons.

**Highlights:** Generate and manipulate musical scales, Detailed scale definition and editing, Audition scales within the app, Export as MIDI or to Gestrument, Predefined scales from various traditions, Explore microtonal and experimental tunings

**In-app purchases:** none


### EchoSketch

[App page](https://appshunter.io/ios/app/echosketch-performance-delay/id6794466741)

Shape delay and reverb effects in real-time with a playable X/Y performance surface. Explore four distinct delay types and multiple reverb options, with extensive parameter control for unique sound morphing. Works as a standalone app or an Audio Unit plugin.

**Highlights:** X/Y performance surface for real-time sound shaping, Four distinct delay types: digital, analog, reverse, ping-pong, Spring, plate, and hall convolution reverb, Modulation and tone control for echoes, HOLD, LIFT, FREEZE, and MOTION performance gestures, Standalone app and AUv3 plugin compatibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ScaleGen free?

ScaleGen costs $3.99, with no in-app purchases.

### Is EchoSketch free?

EchoSketch costs $7.99, with no in-app purchases.

### Which has better reviews, ScaleGen or EchoSketch?

EchoSketch is rated higher. ScaleGen averages 4.7 out of 5 from 12 ratings, while EchoSketch averages 5.0 from 2 ratings.

### Do ScaleGen or EchoSketch have ads?

Neither ScaleGen nor EchoSketch shows ads.

### Which is updated more often, ScaleGen or EchoSketch?

ScaleGen ships an update every 29 months, and EchoSketch every 2 days. Most recently, ScaleGen was updated on September 27, 2026 and EchoSketch on September 29, 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.*