# VBus®Touch HC vs Flue Gas Analysis

The clearest difference is review sentiment: Flue Gas Analysis at 100% against VBus®Touch HC's 0%. Flue Gas Analysis also leads on in-app purchases (none vs 8) and update cadence (every 2 months vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. VBus®Touch HC sells 8 one-off in-app purchases. Flue Gas Analysis asks for nothing beyond the download.

VBus®Touch HC ships an update every 7 months, Flue Gas Analysis every 2 months. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | VBus®Touch HC | Flue Gas Analysis |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 147 MB |
| Requires iOS | **11.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RESOL GmbH](https://appshunter.io/developer/369420321) | [Woehler Technik GmbH](https://appshunter.io/developer/959456679) |

## What reviewers say

### VBus®Touch HC

[App page](https://appshunter.io/ios/app/vbustouch-hc/id965111263)

Control your RESOL heating system remotely from your mobile device. Adjust temperatures, monitor system data with clear graphics, and manage your home's climate from anywhere. Compatible with various RESOL controllers, it offers intuitive operation and automatic system language adaptation.

**Highlights:** Remote heating system control, Adjust temperature on the go, Monitor system data graphically, Supports multiple RESOL controllers, Automatic system language adaptation, Connects to VBus.net account

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RESOL DeltaSol® MX Plus | $8.99 | one-time |
| RESOL DeltaTherm® HC Plus | $8.99 | one-time |
| RESOL DeltaTherm® HC | $9.99 | one-time |
| RESOL DeltaSol® MX | $9.99 | one-time |
| RESOL DeltaTherm® HC MAX | $9.99 | one-time |
| RESOL DeltaSol® BX Plus | $9.99 | one-time |
| COSMO Multi 3 | $9.99 | one-time |
| Citrin SLR XT 2 | $17.99 | one-time |


### Flue Gas Analysis

[App page](https://appshunter.io/ios/app/flue-gas-analysis/id1666473195)

View and export flue gas analysis data from Wöhler Analyzers on your mobile device. Configure graphical displays and save measurements in various formats like PDF, CSV, and XML.

**Highlights:** Graphical and numerical display of measured values, Configuration of graphical display, Save measured values as PDF, CSV, XML, JPG, Configuration of PDF file, Export data from Wöhler Analyzers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VBus®Touch HC free?

VBus®Touch HC is free to download, with in-app purchases available.

### Is Flue Gas Analysis free?

Flue Gas Analysis is free to download, with no in-app purchases.

### Do VBus®Touch HC or Flue Gas Analysis have ads?

Neither VBus®Touch HC nor Flue Gas Analysis shows ads.

### Which is updated more often, VBus®Touch HC or Flue Gas Analysis?

VBus®Touch HC ships an update every 7 months, and Flue Gas Analysis every 2 months. Most recently, VBus®Touch HC was updated on October 7, 2026 and Flue Gas Analysis on October 14, 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.*