# Sauter ECC WLAN vs dxLink21

The clearest difference is update cadence: dxLink21 at every 3 months against Sauter ECC WLAN's every 7 months. Sauter ECC WLAN's advantage is iOS requirement (8.0 vs 15.0). 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.

Sauter ECC WLAN ships an update every 7 months, dxLink21 every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sauter ECC WLAN | dxLink21 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Size | 16 MB | 134 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fr. Sauter AG](https://appshunter.io/developer/586916485) | [Belparts NV](https://appshunter.io/developer/1470365988) |

## What reviewers say

### Sauter ECC WLAN

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

**Features:** macOS Compatibility

**In-app purchases:** none


### dxLink21

[App page](https://appshunter.io/ios/app/dxlink21/id1470365989)

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

**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 dxLink21 free?

dxLink21 is free to download, with no in-app purchases.

### Do Sauter ECC WLAN or dxLink21 have ads?

Neither Sauter ECC WLAN nor dxLink21 shows ads.

### Which is updated more often, Sauter ECC WLAN or dxLink21?

Sauter ECC WLAN ships an update every 7 months, and dxLink21 every 3 months. Most recently, Sauter ECC WLAN was updated on November 1, 2026 and dxLink21 on November 3, 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.*