# Kleutereiland (Klein) vs Rolf Connect Math

The clearest difference is ads: Rolf Connect Math at none against Kleutereiland (Klein)'s shown. Rolf Connect Math also leads on update cadence (every 3 months vs every 12 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Kleutereiland (Klein) ships an update every 12 months, Rolf Connect Math every 3 months. The most recent releases landed on October 16, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Kleutereiland (Klein) | Rolf Connect Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 3 months** |
| Size | 60 MB | 251 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dennis van Duin](https://appshunter.io/developer/1141733010) | [De Rolf Groep](https://appshunter.io/developer/1337618432) |

## What reviewers say

### Kleutereiland (Klein)

[App page](https://appshunter.io/ios/app/kleutereiland-klein/id1211842228)

**Features:** Vision Pro support

**In-app purchases:** none


### Rolf Connect Math

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kleutereiland (Klein) free?

Kleutereiland (Klein) is free to download, with no in-app purchases.

### Is Rolf Connect Math free?

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

### Do Kleutereiland (Klein) or Rolf Connect Math have ads?

Kleutereiland (Klein) shows ads; Rolf Connect Math does not.

### Which is updated more often, Kleutereiland (Klein) or Rolf Connect Math?

Kleutereiland (Klein) ships an update every 12 months, and Rolf Connect Math every 3 months. Most recently, Kleutereiland (Klein) was updated on October 16, 2026 and Rolf Connect Math on November 9, 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.*