# Klien IT Systems vs Dossier Online

The clearest difference is device support: Klien IT Systems at 3 against Dossier Online's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Klien IT Systems | Dossier Online |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 20 MB | 21 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Klien-IT-Systems BV](https://appshunter.io/developer/1574773403) | [Dssr B.V.](https://appshunter.io/developer/1607138663) |

## What reviewers say

### Klien IT Systems

[App page](https://appshunter.io/ios/app/klien-it-systems/id1574773401)

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

**In-app purchases:** none


### Dossier Online

[App page](https://appshunter.io/ios/app/dossier-online/id1607138661)

**In-app purchases:** none


## Frequently asked questions

### Is Klien IT Systems free?

Klien IT Systems is free to download, with no in-app purchases.

### Is Dossier Online free?

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

### Do Klien IT Systems or Dossier Online have ads?

Neither Klien IT Systems nor Dossier Online shows ads.

### Which is updated more often, Klien IT Systems or Dossier Online?

Klien IT Systems ships an update monthly, and Dossier Online monthly. Most recently, Klien IT Systems was updated on October 18, 2026 and Dossier Online on October 25, 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.*