# User Scale vs Sentium Glitch

The clearest difference is price: User Scale at Free against Sentium Glitch's $29.99. User Scale also leads on iOS requirement (8.1 vs 17.0). Sentium Glitch's advantage is rating (5.0 vs 3.5) and update cadence (every 2 weeks vs every 13 months). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

User Scale is free to download; Sentium Glitch costs $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sentium Glitch holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

User Scale ships an update every 13 months, Sentium Glitch every 2 weeks. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | User Scale | Sentium Glitch |
| --- | --- | --- |
| Price | **Free** | $29.99 |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/user-scale/id579231060/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sentium-glitch/id6770832821/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Monetization | **Free** | Paid |
| Size | 8 MB | 14 MB |
| Requires iOS | **8.1** | 17.0 |
| Devices | iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Roland Corporation](https://appshunter.io/developer/387333694) | [Christian Thompson](https://appshunter.io/developer/1511795684) |

## What reviewers say

### User Scale

[App page](https://appshunter.io/ios/app/user-scale/id579231060)

This iPad application allows musicians to control the tuning scale of their Roland instruments. It enables real-time adjustments to key tunings, applying consistent values across notes of the same name during performances.

**Highlights:** Control tuning scale with iPad, Change instrument key tunings, Apply consistent tuning values, Real-time performance control

**In-app purchases:** none


### Sentium Glitch

[App page](https://appshunter.io/ios/app/sentium-glitch/id6770832821)

Create complex, animated electronic instruments using four distinct synthesis engines. Blend subtractive, FM, Karplus-Strong, and wavetable layers with extensive modulation options. Save and recall patches with iCloud sync for a comprehensive sound design experience.

**Highlights:** Four distinct synthesis engines, Layered sound design, Extensive modulation routing, XY pad recording, AUv3 and standalone app, Factory and user presets, iCloud sync for presets

**In-app purchases:** none


## Frequently asked questions

### Is User Scale free?

User Scale is free to download, with no in-app purchases.

### Is Sentium Glitch free?

Sentium Glitch costs $29.99, with no in-app purchases.

### Which has better reviews, User Scale or Sentium Glitch?

Sentium Glitch is rated higher. User Scale averages 3.5 out of 5 from 2 ratings, while Sentium Glitch averages 5.0 from 4 ratings.

### Do User Scale or Sentium Glitch have ads?

Neither User Scale nor Sentium Glitch shows ads.

### Which is updated more often, User Scale or Sentium Glitch?

User Scale ships an update every 13 months, and Sentium Glitch every 2 weeks. Most recently, User Scale was updated on October 16, 2026 and Sentium Glitch on October 17, 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.*