# MPU Pass vs Kopfrechnen Trainer

The clearest difference is iOS requirement: MPU Pass at 15.1 against Kopfrechnen Trainer's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. MPU Pass sells 1 one-off in-app purchase and Kopfrechnen Trainer sells 1 in-app purchase, starting at $9.00 per year. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 8, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | MPU Pass | Kopfrechnen Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 31 MB | 92 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Hendrik Wuerfel](https://appshunter.io/developer/1850182112) | [Alban Nelaj](https://appshunter.io/developer/1894156643) |

## What reviewers say

### MPU Pass

[App page](https://appshunter.io/ios/app/mpu-pass/id6754985561)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MPU Pass Premium Zugang | $17.99 | one-time |


### Kopfrechnen Trainer

[App page](https://appshunter.io/ios/app/kopfrechnen-trainer/id6764520128)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium-Abo | $9.00 | per year |


## Frequently asked questions

### Is MPU Pass free?

MPU Pass is free to download, with in-app purchases available.

### Is Kopfrechnen Trainer free?

Kopfrechnen Trainer is free to download, with in-app purchases available.

### Do MPU Pass or Kopfrechnen Trainer have ads?

Neither MPU Pass nor Kopfrechnen Trainer shows ads.

### Which is updated more often, MPU Pass or Kopfrechnen Trainer?

MPU Pass ships an update fortnightly, and Kopfrechnen Trainer fortnightly. Most recently, MPU Pass was updated on October 8, 2026 and Kopfrechnen Trainer on October 20, 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.*