# Rolf Connect Math vs Robins Wereld

The clearest difference is in-app purchases: Rolf Connect Math at none against Robins Wereld's 1. Rolf Connect Math also leads on iOS requirement (12.2 vs 15.0). Robins Wereld's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Robins Wereld sells 1 in-app purchase, starting at $29.99 per year. Rolf Connect Math asks for nothing beyond the download.

Rolf Connect Math ships an update every 3 months, Robins Wereld every 3 weeks. The most recent releases landed on May 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Rolf Connect Math | Robins Wereld |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 251 MB | 384 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [de Rolf groep BV](https://appshunter.io/developer/1337618432) | [Mediaheads B.V.](https://appshunter.io/developer/532520403) |

## What reviewers say

### Rolf Connect Math

[App page](https://appshunter.io/ios/app/rolf-connect-math/id1457328747)

**Features:** macOS Compatibility

**In-app purchases:** none


### Robins Wereld

[App page](https://appshunter.io/ios/app/robins-wereld/id1496956121)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Licentie Thuisgebruik 1 jaar | $29.99 | per year |


## Frequently asked questions

### Is Rolf Connect Math free?

Rolf Connect Math is free to download, with no in-app purchases.

### Is Robins Wereld free?

Robins Wereld is free to download, with in-app purchases available.

### Do Rolf Connect Math or Robins Wereld have ads?

Neither Rolf Connect Math nor Robins Wereld shows ads.

### Which is updated more often, Rolf Connect Math or Robins Wereld?

Rolf Connect Math ships an update every 3 months, and Robins Wereld every 3 weeks. Most recently, Rolf Connect Math was updated on May 17, 2026 and Robins Wereld on September 15, 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.*