# DEKRA TACS4 vs Robomaxx

The clearest difference is update cadence: DEKRA TACS4 at every 5 weeks against Robomaxx's every 6 months. 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.

DEKRA TACS4 ships an update every 5 weeks, Robomaxx every 6 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | DEKRA TACS4 | Robomaxx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/robomaxx/id1505289993/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | — | Free |
| Size | 30 MB | 13 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [AT4 wireless S.A.](https://appshunter.io/developer/675014301) | [Matsutek Enterprises Co., Ltd.](https://appshunter.io/developer/1453670542) |

## What reviewers say

### DEKRA TACS4

[App page](https://appshunter.io/ios/app/dekra-tacs4-mobile/id780499424)

**Features:** macOS Compatibility

**In-app purchases:** none


### Robomaxx

[App page](https://appshunter.io/ios/app/robomaxx/id1505289993)

Remotely manage your robotic vacuum cleaner with an intuitive interface. Control fan power, set cleaning zones, schedule cleanings, and define prohibited areas from your mobile device.

**Highlights:** Cloud intelligent remote management, Control fan power, Manage cleaning efficiency, Set prohibited areas, Zone cleaning, Schedule cleanings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DEKRA TACS4 free?

DEKRA TACS4 is free to download, with no in-app purchases.

### Is Robomaxx free?

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

### Do DEKRA TACS4 or Robomaxx have ads?

Neither DEKRA TACS4 nor Robomaxx shows ads.

### Which is updated more often, DEKRA TACS4 or Robomaxx?

DEKRA TACS4 ships an update every 5 weeks, and Robomaxx every 6 months. Most recently, DEKRA TACS4 was updated on October 26, 2026 and Robomaxx 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.*