# Evreka FieldWork vs CvA Open Dagen

The clearest difference is update cadence: Evreka FieldWork at fortnightly against CvA Open Dagen's every 24 months. CvA Open Dagen's advantage is iOS requirement (10.0 vs 16.1). 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.

Evreka FieldWork ships an update fortnightly, CvA Open Dagen every 24 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Evreka FieldWork | CvA Open Dagen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 24 months |
| Size | 235 MB | 11 MB |
| Requires iOS | 16.1 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Evreka](https://appshunter.io/developer/1250028854) | [Stichting Musici van Morgen](https://appshunter.io/developer/1446879831) |

## What reviewers say

### Evreka FieldWork

[App page](https://appshunter.io/ios/app/evreka-fieldwork/id1595110795)

**Features:** Vision Pro support

**In-app purchases:** none


### CvA Open Dagen

[App page](https://appshunter.io/ios/app/cva-open-dagen/id6444035641)

**In-app purchases:** none


## Frequently asked questions

### Is Evreka FieldWork free?

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

### Is CvA Open Dagen free?

CvA Open Dagen is free to download, with no in-app purchases.

### Do Evreka FieldWork or CvA Open Dagen have ads?

Neither Evreka FieldWork nor CvA Open Dagen shows ads.

### Which is updated more often, Evreka FieldWork or CvA Open Dagen?

Evreka FieldWork ships an update fortnightly, and CvA Open Dagen every 24 months. Most recently, Evreka FieldWork was updated on November 3, 2026 and CvA Open Dagen on November 3, 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.*