# TESS Services vs Onix Worker

The clearest difference is update cadence: Onix Worker at every 2 months against TESS Services's every 13 months. TESS Services's advantage is iOS requirement (11.0 vs 16.0). 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.

TESS Services ships an update every 13 months, Onix Worker every 2 months. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | TESS Services | Onix Worker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Size | 163 MB | 38 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TESS as](https://appshunter.io/developer/916176940) | [Onix](https://appshunter.io/developer/1046739339) |

## What reviewers say

### TESS Services

[App page](https://appshunter.io/ios/app/tess-services/id1551100621)

**Features:** macOS Compatibility

**In-app purchases:** none


### Onix Worker

[App page](https://appshunter.io/ios/app/onix-worker/id1624611016)

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

**In-app purchases:** none


## Frequently asked questions

### Is TESS Services free?

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

### Is Onix Worker free?

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

### Do TESS Services or Onix Worker have ads?

Neither TESS Services nor Onix Worker shows ads.

### Which is updated more often, TESS Services or Onix Worker?

TESS Services ships an update every 13 months, and Onix Worker every 2 months. Most recently, TESS Services was updated on October 7, 2026 and Onix Worker on October 11, 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.*