# Onderzoekfabriek vs SUSA

The clearest difference is update cadence: Onderzoekfabriek at every 9 days against SUSA's every 6 weeks. 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.

Onderzoekfabriek ships an update every 9 days, SUSA every 6 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Onderzoekfabriek | SUSA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Size | 72 MB | 29 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [de Onderzoekfabriek](https://appshunter.io/developer/1056706381) | [SUSA B.V.](https://appshunter.io/developer/1615980723) |

## What reviewers say

### Onderzoekfabriek

[App page](https://appshunter.io/ios/app/onderzoekfabriek/id1050138338)

**Features:** macOS Compatibility

**In-app purchases:** none


### SUSA

[App page](https://appshunter.io/ios/app/susa/id1615980721)

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

**In-app purchases:** none


## Frequently asked questions

### Is Onderzoekfabriek free?

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

### Is SUSA free?

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

### Do Onderzoekfabriek or SUSA have ads?

Neither Onderzoekfabriek nor SUSA shows ads.

### Which is updated more often, Onderzoekfabriek or SUSA?

Onderzoekfabriek ships an update every 9 days, and SUSA every 6 weeks. Most recently, Onderzoekfabriek was updated on November 2, 2026 and SUSA on November 3, 2026.

---

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