# Sauermann Combustion vs Belimo Assistant 2

The clearest difference is ads: Belimo Assistant 2 at none against Sauermann Combustion's shown. Sauermann Combustion's advantage is iOS requirement (14.0 vs 17.0). On price, update cadence, 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.

Sauermann Combustion ships an update every 2 months, Belimo Assistant 2 every 5 weeks. The most recent releases landed on September 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Sauermann Combustion | Belimo Assistant 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (10 ratings)](https://appshunter.io/ios/app/belimo-assistant-2/id6475810004/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 25 MB | 122 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SAUERMANN INDUSTRIE](https://appshunter.io/developer/1169513729) | [BELIMO Automation AG](https://appshunter.io/developer/1149281298) |

## What reviewers say

### Sauermann Combustion

[App page](https://appshunter.io/ios/app/sauermann-combustion/id1520008258)

**Features:** macOS Compatibility

**In-app purchases:** none


### Belimo Assistant 2

[App page](https://appshunter.io/ios/app/belimo-assistant-2/id6475810004)

This app allows for the setup, operation, and troubleshooting of Belimo devices like actuators and valves using a smartphone or tablet. It offers features for checking parameters, monitoring device status, and generating reports.

**Highlights:** Device parameter modification, Identification data display, MP-Bus, BACnet, Modbus addressing, Guided parameter setup, Configuration copy/paste, Live trending and local override, Device health and operation monitoring, Digital report generation

**In-app purchases:** none


## Frequently asked questions

### Is Sauermann Combustion free?

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

### Is Belimo Assistant 2 free?

Belimo Assistant 2 is free to download, with no in-app purchases.

### Do Sauermann Combustion or Belimo Assistant 2 have ads?

Sauermann Combustion shows ads; Belimo Assistant 2 does not.

### Which is updated more often, Sauermann Combustion or Belimo Assistant 2?

Sauermann Combustion ships an update every 2 months, and Belimo Assistant 2 every 5 weeks. Most recently, Sauermann Combustion was updated on September 17, 2026 and Belimo Assistant 2 on September 16, 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.*