# Heat Control vs Schlüter®

The clearest difference is update cadence: Schlüter® at every 2 weeks against Heat Control's every 5 weeks. Heat Control's advantage is iOS requirement (12.4 vs 16.0). 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.

Heat Control ships an update every 5 weeks, Schlüter® every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Heat Control | Schlüter® |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Size | 8 MB | 106 MB |
| Requires iOS | **12.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Innovega GmbH](https://appshunter.io/developer/1449968218) | [Schlueter-Systems KG](https://appshunter.io/developer/915757337) |

## What reviewers say

### Heat Control

[App page](https://appshunter.io/ios/app/heat-control/id1466224737)

**Features:** macOS Compatibility

**In-app purchases:** none


### Schlüter®

[App page](https://appshunter.io/ios/app/schluter-tr-control/id6749083068)

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

**In-app purchases:** none


## Frequently asked questions

### Is Heat Control free?

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

### Is Schlüter® free?

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

### Do Heat Control or Schlüter® have ads?

Neither Heat Control nor Schlüter® shows ads.

### Which is updated more often, Heat Control or Schlüter®?

Heat Control ships an update every 5 weeks, and Schlüter® every 2 weeks. Most recently, Heat Control was updated on November 3, 2026 and Schlüter® on October 31, 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.*