# dxLink21 vs TROX Ox ServiceApp

dxLink21 and TROX Ox ServiceApp 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.

dxLink21 ships an update every 3 months, TROX Ox ServiceApp every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | dxLink21 | TROX Ox ServiceApp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Size | 134 MB | 58 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Belparts NV](https://appshunter.io/developer/1470365988) | [TROX GmbH](https://appshunter.io/developer/968659913) |

## What reviewers say

### dxLink21

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

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

**In-app purchases:** none


### TROX Ox ServiceApp

[App page](https://appshunter.io/ios/app/trox-ox-serviceapp/id6740277435)

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

**In-app purchases:** none


## Frequently asked questions

### Is dxLink21 free?

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

### Is TROX Ox ServiceApp free?

TROX Ox ServiceApp is free to download, with no in-app purchases.

### Do dxLink21 or TROX Ox ServiceApp have ads?

Neither dxLink21 nor TROX Ox ServiceApp shows ads.

### Which is updated more often, dxLink21 or TROX Ox ServiceApp?

dxLink21 ships an update every 3 months, and TROX Ox ServiceApp every 6 weeks. Most recently, dxLink21 was updated on November 3, 2026 and TROX Ox ServiceApp on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*