# ScaleGen vs Pendoly

The clearest difference is update cadence: Pendoly at every 2 months against ScaleGen's every 29 months. Pendoly also leads on review sentiment (100% vs 71%) and rating (5.0 vs 4.7). ScaleGen's advantage is ratings volume (12 vs 2) and iOS requirement (10.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Pendoly 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. Written reviews point the same way: 71% of ScaleGen's written reviews are positive against 100% of Pendoly's.

ScaleGen ships an update every 29 months, Pendoly every 2 months. The most recent releases landed on September 27, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | ScaleGen | Pendoly |
| --- | --- | --- |
| Price | $3.99 | $3.99 |
| Rating | [4.7 (12 ratings)](https://appshunter.io/ios/app/scalegen/id908056629/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pendoly/id6755604764/reviews)** |
| Number of ratings | **12** | 2 |
| Positive reviews | 70.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 14 MB | 30 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gestrument AB](https://appshunter.io/developer/576235485) | [Caroline Siegers](https://appshunter.io/developer/1854826310) |

## 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


### Pendoly

[App page](https://appshunter.io/ios/app/pendoly/id6755604764)

This app transforms pendulum swings into musical compositions. Choose from various instrument sounds or create your own unique harmonies. Experience the blend of physics and music with high-quality, recorded instruments.

**Highlights:** Pendulum-driven music generation, Customizable harmonies, Multiple high-quality instrument sounds, Physics-based composition, Hand-recorded instruments

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ScaleGen free?

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

### Is Pendoly free?

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

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

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

### Do ScaleGen or Pendoly have ads?

Neither ScaleGen nor Pendoly shows ads.

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

ScaleGen ships an update every 29 months, and Pendoly every 2 months. Most recently, ScaleGen was updated on September 27, 2026 and Pendoly on September 25, 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.*