# Kopfrechnen Trainer vs Blitzcalc

Kopfrechnen Trainer and Blitzcalc are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Kopfrechnen Trainer sells 1 in-app purchase, starting at $9.00 per year and Blitzcalc sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Kopfrechnen Trainer | Blitzcalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 92 MB | 25 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alban Nelaj](https://appshunter.io/developer/1894156643) | [Lars Haneveld](https://appshunter.io/developer/6792379527) |

## What reviewers say

### 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 |


### Blitzcalc

[App page](https://appshunter.io/ios/app/blitzcalc-mental-math/id6792379525)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Kopfrechnen Trainer free?

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

### Is Blitzcalc free?

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

### Do Kopfrechnen Trainer or Blitzcalc have ads?

Neither Kopfrechnen Trainer nor Blitzcalc shows ads.

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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.*