# Math Trainer vs Knowra

The clearest difference is in-app purchases: Knowra at none against Math Trainer's 1. Math Trainer's advantage is iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | Math Trainer | Knowra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 31 MB | 9 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Myroslava Zazuliak](https://appshunter.io/developer/1860692193) | [LE ANH TUAN](https://appshunter.io/developer/1857237273) |

## What reviewers say

### Math Trainer

[App page](https://appshunter.io/ios/app/math-trainer-vectors/id6756442899)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium-Upgrade | $0.99 | one-time |


### Knowra

[App page](https://appshunter.io/ios/app/knowra-learn-without-trying/id6762287107)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Trainer free?

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

### Is Knowra free?

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

### Do Math Trainer or Knowra have ads?

Neither Math Trainer nor Knowra 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.*