User Scale vs Solo Scale Controller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
User Scale
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.
- Control tuning scale with iPad
- Change instrument key tunings
- Apply consistent tuning values
- Real-time performance control
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This software application for iPad lets you change the tuning scale of your Roland musical instrument. When using User Scale you can: • Play your Roland musical instrument while controlling the tuning scale of your performance with your iPad • Change the tuning of your musical instrument’s keys. Apply the same values to all notes of the same name App requires: - Apple iPad Camera Connection Kit (camera connectors made by Apple Inc.) and USB cable (type A–male to type B–male, commercially available) -or- - Roland musical instrument that supports the wireless LAN function
Solo Scale Controller
This professional-grade app provides real-time control over keyboard scale and tuning for musicians. It offers seamless adjustments to musical parameters, enabling new creative possibilities for live performances and studio sessions.
- Real-time scale tuning
- Transpose functionality
- Pitch bend control
- Preset management
- Bank select
- OTG and BLE connectivity
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Scale Controller is a professional-grade mobile application designed specifically to control the scale and tuning of your keyboard in real-time. Tailored for musicians, this app offers seamless control over various musical parameters, helping you unlock new creative possibilities. Compatible Keyboards: - Korg Triton Extreme - Korg Triton Classic - Korg Triton Studio - Korg Trinity - Korg Trinity V3 - Korg Kronos 1 & 2 - Korg M3 - Korg Krome - Korg Nautilus Supported Features: - Real-time Scale Tuning - Transpose - Pitch Bend - Preset Management - Bank Select - Connection Options: OTG Cable for direct connection BLE Yamaha for wireless Bluetooth connectivity With Scale Controller, you can effortlessly adjust your keyboard settings on the go, making it the perfect tool for live performances or studio sessions. Explore new tunings, experiment with presets, and achieve perfect harmony with ease.
Screenshots
Verdict
The clearest difference is review sentiment: User Scale at 100% against Solo Scale Controller's 0%. User Scale also leads on price (Free vs $44.99) and iOS requirement (8.1 vs 14.0). Solo Scale Controller's advantage is update cadence (every 9 days vs every 13 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
User Scale is free to download; Solo Scale Controller costs $44.99 up front. Neither carries in-app purchases, so what you see is what you pay.
User Scale ships an update every 13 months, Solo Scale Controller every 9 days. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.
| Parameter | User Scale | Solo Scale Controller |
|---|---|---|
| Price | Free — better | $44.99 |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 13 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 8.1 — better | 14.0 |
| Further details — not scored | ||
| Size | 8 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Roland Corporation | 9390-0801 Quebec inc |
Customer experience
User Scale
Solo Scale Controller
In-app purchases
User Scale
No in-app purchases
Solo Scale Controller
No in-app purchases
Questions
Is User Scale free?
Is Solo Scale Controller free?
Do User Scale or Solo Scale Controller have ads?
Which is updated more often, User Scale or Solo Scale Controller?
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