# SLS Control vs Symcon Visualization

The clearest difference is update cadence: Symcon Visualization at every 6 weeks against SLS Control's every 11 months. SLS Control's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SLS Control ships an update every 11 months, Symcon Visualization every 6 weeks. The most recent releases landed on September 15, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | SLS Control | Symcon Visualization |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Size | 68 MB | 73 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TROPICAL OUTDOOR CO LIMITED](https://appshunter.io/developer/1455237447) | [Symcon GmbH](https://appshunter.io/developer/412289374) |

## What reviewers say

### SLS Control

[App page](https://appshunter.io/ios/app/sls-control/id1473402871)

**Features:** macOS Compatibility

**In-app purchases:** none


### Symcon Visualization

[App page](https://appshunter.io/ios/app/symcon-visualization/id1566124129)

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

**In-app purchases:** none


## Frequently asked questions

### Is SLS Control free?

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

### Is Symcon Visualization free?

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

### Do SLS Control or Symcon Visualization have ads?

Neither SLS Control nor Symcon Visualization shows ads.

### Which is updated more often, SLS Control or Symcon Visualization?

SLS Control ships an update every 11 months, and Symcon Visualization every 6 weeks. Most recently, SLS Control was updated on September 15, 2026 and Symcon Visualization on September 30, 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.*