# ScaleGen vs Ioniarics

The clearest difference is rating: ScaleGen at 4.7 against Ioniarics's 4.4. ScaleGen also leads on price ($3.99 vs $6.99) and iOS requirement (10.0 vs 15.6). Ioniarics's advantage is device support (3 vs 1). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

ScaleGen costs $3.99 and Ioniarics $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ScaleGen holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 12 and 18 respectively. Written reviews complicate that: 71% of ScaleGen's written reviews are positive against 77% of Ioniarics's, so the app with the better star average is not the one people write more warmly about.

ScaleGen ships an update every 29 months, Ioniarics every 44 months. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ScaleGen | Ioniarics |
| --- | --- | --- |
| Price | **$3.99** | $6.99 |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/scalegen/id908056629/reviews)** | [4.4 (18 ratings)](https://appshunter.io/ios/app/ioniarics/id1473268015/reviews) |
| Number of ratings | 12 | **18** |
| Positive reviews | 70.6% of reviews | **76.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 29 months** | Every 44 months |
| Monetization | Paid | Paid |
| Size | 14 MB | 1 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gestrument AB](https://appshunter.io/developer/576235485) | [Pagefall limited](https://appshunter.io/developer/1440149544) |

## 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


### Ioniarics

[App page](https://appshunter.io/ios/app/ioniarics/id1473268015)

Easily create complex rhythmic patterns and generate unique musical sequences. This tool simplifies polyrhythm programming with probability filters and a function generator to keep patterns fresh and interesting.

**Highlights:** Complex rhythmic pattern creation, Polyrhythm programming, Sequence generation, Probability filters, Function generator

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

**In-app purchases:** none


## Frequently asked questions

### Is ScaleGen free?

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

### Is Ioniarics free?

Ioniarics costs $6.99, with no in-app purchases.

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

ScaleGen is rated higher. ScaleGen averages 4.7 out of 5 from 12 ratings, while Ioniarics averages 4.4 from 18 ratings.

### Do ScaleGen or Ioniarics have ads?

Neither ScaleGen nor Ioniarics shows ads.

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

ScaleGen ships an update every 29 months, and Ioniarics every 44 months. Most recently, ScaleGen was updated on October 13, 2026 and Ioniarics on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*