# OS Worker vs DBI Certifikater

The clearest difference is update cadence: OS Worker at every 3 weeks against DBI Certifikater's every 31 months. OS Worker also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

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

OS Worker ships an update every 3 weeks, DBI Certifikater every 31 months. The most recent releases landed on September 21, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | OS Worker | DBI Certifikater |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 3 weeks** | Every 31 months |
| Size | 69 MB | 42 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [Ordrestyring ApS](https://appshunter.io/developer/1791952852) | [Dansk Brand- og sikringsteknisk Institut](https://appshunter.io/developer/1466774274) |

## What reviewers say

### OS Worker

[App page](https://appshunter.io/ios/app/os-worker/id1499451611)

**Features:** Vision Pro support

**In-app purchases:** none


### DBI Certifikater

[App page](https://appshunter.io/ios/app/dbi-certifikater/id6450303785)

**In-app purchases:** none


## Frequently asked questions

### Is OS Worker free?

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

### Is DBI Certifikater free?

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

### Which is updated more often, OS Worker or DBI Certifikater?

OS Worker ships an update every 3 weeks, and DBI Certifikater every 31 months. Most recently, OS Worker was updated on September 21, 2026 and DBI Certifikater on July 6, 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.*