# Krolf vs Roth Touchline® SL

The clearest difference is iOS requirement: Roth Touchline® SL at 12.4 against Krolf's 16.4. 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.

Krolf ships an update every 5 months, Roth Touchline® SL every 8 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Krolf | Roth Touchline® SL |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 8 months |
| Monetization | — | Free |
| Size | 58 MB | 0 MB |
| Requires iOS | 16.4 | **12.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fabian Fischer](https://appshunter.io/developer/1414047383) | [Roth North Europe A/S](https://appshunter.io/developer/498448809) |

## What reviewers say

### Krolf

[App page](https://appshunter.io/ios/app/krolf/id1414047384)

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

**In-app purchases:** none


### Roth Touchline® SL

[App page](https://appshunter.io/ios/app/roth-touchline-sl/id1584962104)

Control your Roth home heating system directly from your iOS device. Manage your heating remotely for optimal comfort and efficiency.

**Highlights:** Remote heating system control, iOS device integration, Home comfort management, Heating efficiency optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Krolf free?

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

### Is Roth Touchline® SL free?

Roth Touchline® SL is free to download, with no in-app purchases.

### Do Krolf or Roth Touchline® SL have ads?

Neither Krolf nor Roth Touchline® SL shows ads.

### Which is updated more often, Krolf or Roth Touchline® SL?

Krolf ships an update every 5 months, and Roth Touchline® SL every 8 months. Most recently, Krolf was updated on October 7, 2026 and Roth Touchline® SL on October 9, 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.*