# PAcalculate vs SYS Control

The clearest difference is review sentiment: PAcalculate at 100% against SYS Control's 0%. PAcalculate also leads on rating (5.0 vs 1.0) and ratings volume (7 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PAcalculate holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: PAcalculate has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of PAcalculate's written reviews are positive against 0% of SYS Control's.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 13, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | PAcalculate | SYS Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/pacalculate/id793460437/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/sys-control/id1532236321/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free | Free |
| Size | 3 MB | 41 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jose Brusi](https://appshunter.io/developer/793460440) | [Powersoft SpA](https://appshunter.io/developer/1230497978) |

## What reviewers say

### PAcalculate

[App page](https://appshunter.io/ios/app/pacalculate/id793460437)

This app provides 28 calculators and reference information for professional audio sound reinforcement and lighting. It covers acoustics, audio electronics, cabling, and lighting calculations, making it a valuable tool for audio and lighting professionals.

**Highlights:** 28 calculators for pro-audio and lighting, Acoustics calculations (SPL, air absorption), Audio electronics calculations (dBu/dBV, Q/B/W), Cabling calculations (speaker cable loss), Lighting calculations (DMX, RGB/CMY), Reference info (pinouts, graphs)

**Features:** macOS Compatibility

**In-app purchases:** none


### SYS Control

[App page](https://appshunter.io/ios/app/sys-control/id1532236321)

This application provides intuitive control over Powersoft's Dynamic Music Distribution systems. Users can easily manage audio sources, adjust zone levels, and recall system configurations through a simplified interface. Connect to your system via network scan or QR code for seamless audio management.

**Highlights:** Select audio sources, Control zone levels, Recall system configurations, Network scanning for connection, QR code connection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PAcalculate free?

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

### Is SYS Control free?

SYS Control is free to download, with no in-app purchases.

### Which has better reviews, PAcalculate or SYS Control?

PAcalculate is rated higher. PAcalculate averages 5.0 out of 5 from 7 ratings, while SYS Control averages 1.0 from 1 ratings.

### Do PAcalculate or SYS Control have ads?

Neither PAcalculate nor SYS Control shows ads.

### Which is updated more often, PAcalculate or SYS Control?

PAcalculate ships an update every 4 months, and SYS Control every 4 months. Most recently, PAcalculate was updated on September 13, 2026 and SYS Control on September 23, 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.*