# Kraepelin Training vs Math Booster

The clearest difference is in-app purchases: Math Booster at none against Kraepelin Training's 1. Math Booster also leads on ads (none vs shown) and iOS requirement (12.1 vs 14.1). On price and device support there is nothing between them.

Both are free to download. Kraepelin Training sells 1 one-off in-app purchase. Math Booster asks for nothing beyond the download.

## The numbers

| Metric | Kraepelin Training | Math Booster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (20 ratings)](https://appshunter.io/ios/app/kraepelin-training/id1560607060/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 32 MB |
| Requires iOS | 14.1 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takahide Kambe](https://appshunter.io/developer/1502914652) | [Bustomi .](https://appshunter.io/developer/1392914229) |

## What reviewers say

### Kraepelin Training

[App page](https://appshunter.io/ios/app/kraepelin-training/id1560607060)

Practice the Kraepelin test, a mental arithmetic exercise. Add adjacent numbers and input the last digit. Features custom operators, test assessment, and a PRO version with handwriting recognition and ad removal.

**Highlights:** Adjacent number addition, Custom operator modes (+, -, x), Test result assessment (S to C ranks), Hand-writing input (PRO), Brain training and calculation practice

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Paid Version | $2.99 | one-time |


### Math Booster

[App page](https://appshunter.io/ios/app/math-booster/id1616393108)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kraepelin Training free?

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

### Is Math Booster free?

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

### Do Kraepelin Training or Math Booster have ads?

Kraepelin Training shows ads; Math Booster does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*