# Open Dag App vs Ulbe van Houten

The clearest difference is iOS requirement: Open Dag App at 8.0 against Ulbe van Houten's 15.1. 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.

Open Dag App ships an update every 6 weeks, Ulbe van Houten every 2 months. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Open Dag App | Ulbe van Houten |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/open-dag-app/id1485210930/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 127 MB | 44 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ParentCom B.V.](https://appshunter.io/developer/890851768) | [Infowijs B.V.](https://appshunter.io/developer/1499461770) |

## What reviewers say

### Open Dag App

[App page](https://appshunter.io/ios/app/open-dag-app/id1485210930)

Discover your future school with this app, providing all necessary information before, during, and after open days. Stay informed about school values, staff, guidance, and enrollment for trial lessons. Receive push notifications for event recaps and enrollment updates.

**Highlights:** School information access, Open day preparation, Post-open day communication, Push notifications, Enrollment updates, School-specific branding

**Features:** macOS Compatibility

**In-app purchases:** none


### Ulbe van Houten

[App page](https://appshunter.io/ios/app/ulbe-van-houten/id6477441933)

**In-app purchases:** none


## Frequently asked questions

### Is Open Dag App free?

Open Dag App is free to download, with no in-app purchases.

### Is Ulbe van Houten free?

Ulbe van Houten is free to download, with no in-app purchases.

### Do Open Dag App or Ulbe van Houten have ads?

Neither Open Dag App nor Ulbe van Houten shows ads.

### Which is updated more often, Open Dag App or Ulbe van Houten?

Open Dag App ships an update every 6 weeks, and Ulbe van Houten every 2 months. Most recently, Open Dag App was updated on October 22, 2026 and Ulbe van Houten 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.*