# Math Bus vs Klankklas 1

The clearest difference is update cadence: Klankklas 1 at monthly against Math Bus's every 4 months. Klankklas 1 also leads on iOS requirement (9.0 vs 13.0). Math Bus's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support there is nothing between them.

Math Bus costs $0.99 and Klankklas 1 $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Math Bus ships an update every 4 months, Klankklas 1 monthly. The most recent releases landed on September 27, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Math Bus | Klankklas 1 |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Size | 18 MB | 197 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Henk Jurriens](https://appshunter.io/developer/524160208) | [Marije Smit](https://appshunter.io/developer/508875760) |

## What reviewers say

### Math Bus

[App page](https://appshunter.io/ios/app/math-bus/id716831058)

**Features:** macOS Compatibility

**In-app purchases:** none


### Klankklas 1

[App page](https://appshunter.io/ios/app/klankklas-1/id740485844)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Bus free?

Math Bus costs $0.99, with no in-app purchases.

### Is Klankklas 1 free?

Klankklas 1 costs $1.99, with no in-app purchases.

### Do Math Bus or Klankklas 1 have ads?

Neither Math Bus nor Klankklas 1 shows ads.

### Which is updated more often, Math Bus or Klankklas 1?

Math Bus ships an update every 4 months, and Klankklas 1 monthly. Most recently, Math Bus was updated on September 27, 2026 and Klankklas 1 on October 4, 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.*