# Sauter ECC WLAN vs TROVIS 55Pro

Sauter ECC WLAN and TROVIS 55Pro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Sauter ECC WLAN ships an update every 7 months, TROVIS 55Pro every 8 months. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Sauter ECC WLAN | TROVIS 55Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 8 months |
| Size | 16 MB | 23 MB |
| Requires iOS | **8.0** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fr. Sauter AG](https://appshunter.io/developer/586916485) | [KT-Elektronik, Klaucke und Partner GmbH](https://appshunter.io/developer/943003350) |

## What reviewers say

### Sauter ECC WLAN

[App page](https://appshunter.io/ios/app/sauter-ecc-wlan/id600561101)

**Features:** macOS Compatibility

**In-app purchases:** none


### TROVIS 55Pro

[App page](https://appshunter.io/ios/app/trovis-55pro/id943003351)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sauter ECC WLAN free?

Sauter ECC WLAN is free to download, with no in-app purchases.

### Is TROVIS 55Pro free?

TROVIS 55Pro is free to download, with no in-app purchases.

### Do Sauter ECC WLAN or TROVIS 55Pro have ads?

Neither Sauter ECC WLAN nor TROVIS 55Pro shows ads.

### Which is updated more often, Sauter ECC WLAN or TROVIS 55Pro?

Sauter ECC WLAN ships an update every 7 months, and TROVIS 55Pro every 8 months. Most recently, Sauter ECC WLAN was updated on September 21, 2026 and TROVIS 55Pro on September 17, 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.*