# VO App vs Valkenburg Castle

The clearest difference is update cadence: VO App at monthly against Valkenburg Castle's every 3 months. VO App also leads on iOS requirement (8.0 vs 15.0). 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.

VO App ships an update monthly, Valkenburg Castle every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | VO App | Valkenburg Castle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/valkenburg-castle/id1496779477/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | — | Free |
| Size | 126 MB | 188 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ParentCom B.V.](https://appshunter.io/developer/890851768) | [Dutch Rose Media](https://appshunter.io/developer/525452118) |

## What reviewers say

### VO App

[App page](https://appshunter.io/ios/app/vo-app/id1495313039)

**Features:** macOS Compatibility

**In-app purchases:** none


### Valkenburg Castle

[App page](https://appshunter.io/ios/app/valkenburg-castle/id1496779477)

Explore castle ruins with augmented reality, bringing history to life. Engage in interactive experiences like preparing for a medieval wedding or learning about the castle's construction.

**Highlights:** Augmented Reality (AR) routes, Medieval wedding preparation simulation, Historical castle architecture exploration, Interactive character encounters, Virtual drawbridge and candle lighting, Choose between experience or architecture routes

**In-app purchases:** none


## Frequently asked questions

### Is VO App free?

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

### Is Valkenburg Castle free?

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

### Do VO App or Valkenburg Castle have ads?

Neither VO App nor Valkenburg Castle shows ads.

### Which is updated more often, VO App or Valkenburg Castle?

VO App ships an update monthly, and Valkenburg Castle every 3 months. Most recently, VO App was updated on November 3, 2026 and Valkenburg Castle 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.*