# User Scale vs Smart Scale Controller Pro

User Scale and Smart Scale Controller Pro both sit at 3.5 stars, but that hides the real split: 100% of User Scale's written reviews are positive against 50% of Smart Scale Controller Pro's. User Scale also leads on price (Free vs $99.99) and in-app purchases (none vs 3). Smart Scale Controller Pro's advantage is update cadence (every 3 weeks vs every 13 months) and ratings volume (9 vs 2). On rating and ads there is nothing between them.

User Scale is free to download; Smart Scale Controller Pro costs $99.99 up front. Smart Scale Controller Pro sells 3 one-off in-app purchases. User Scale asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.5 for User Scale against 3.4 for Smart Scale Controller Pro. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews are what separate them: 100% of User Scale's written reviews are positive against 50% of Smart Scale Controller Pro's.

User Scale ships an update every 13 months, Smart Scale Controller Pro every 3 weeks. The most recent releases landed on June 5, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | User Scale | Smart Scale Controller Pro |
| --- | --- | --- |
| Price | **Free** | $99.99 |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/user-scale/id579231060/reviews)** | [3.4 (9 ratings)](https://appshunter.io/ios/app/smart-scale-controller-pro/id1519381658/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 8 MB | 97 MB |
| Requires iOS | **8.1** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roland Corporation](https://appshunter.io/developer/387333694) | [9390-0801 Quebec inc](https://appshunter.io/developer/1517759983) |

## 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


### Smart Scale Controller Pro

[App page](https://appshunter.io/ios/app/smart-scale-controller-pro/id1519381658)

Control keyboard scale and tuning in real-time. Offers seamless control over musical parameters for musicians, unlocking new creative possibilities. Perfect for live performances or studio sessions.

**Highlights:** Real-time scale tuning, Transpose, Pitch bend, Preset management, Bank select, OTG and BLE connectivity

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Virtual MIDI Devices | $4.99 | one-time |
| Unlimited Preset Banks | $4.99 | one-time |
| Plugin Mode — AUv3 Instruments | $30.00 | one-time |


## Frequently asked questions

### Is User Scale free?

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

### Is Smart Scale Controller Pro free?

Smart Scale Controller Pro costs $99.99, and also offers in-app purchases.

### Which has better reviews, User Scale or Smart Scale Controller Pro?

User Scale is rated higher. User Scale averages 3.5 out of 5 from 2 ratings, while Smart Scale Controller Pro averages 3.4 from 9 ratings.

### Do User Scale or Smart Scale Controller Pro have ads?

Neither User Scale nor Smart Scale Controller Pro shows ads.

### Which is updated more often, User Scale or Smart Scale Controller Pro?

User Scale ships an update every 13 months, and Smart Scale Controller Pro every 3 weeks. Most recently, User Scale was updated on June 5, 2026 and Smart Scale Controller Pro on September 8, 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.*