# M3 Mental Math vs Slaagtaal

The clearest difference is update cadence: Slaagtaal at daily against M3 Mental Math's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. M3 Mental Math sells 2 in-app purchases, starting at $1.99 per month and Slaagtaal sells 3 in-app purchases, starting at $17.99 per month. Whichever you choose, the download price is not the number that matters.

M3 Mental Math ships an update every 6 weeks, Slaagtaal daily. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | M3 Mental Math | Slaagtaal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 94 MB | 9 MB |
| Requires iOS | 15 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Institut Dr. Ehrlich e.K.](https://appshunter.io/developer/1601127216) | [Little Lion Labs](https://appshunter.io/developer/1892016553) |

## What reviewers say

### M3 Mental Math

[App page](https://appshunter.io/ios/app/m3-mental-math-learn-math/id6759405058)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version (monthly) | $1.99 | per month |
| Pro Version (annually) | $12.99 | per year |


### Slaagtaal

[App page](https://appshunter.io/ios/app/slaagtaal/id6817733006)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 maand | $17.99 | per month |
| Premium 2 maanden | $24.99 | per 2 months |
| Premium 6 maanden | $49.99 | per 6 months |


## Frequently asked questions

### Is M3 Mental Math free?

M3 Mental Math is free to download, with in-app purchases available.

### Is Slaagtaal free?

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

### Do M3 Mental Math or Slaagtaal have ads?

Neither M3 Mental Math nor Slaagtaal shows ads.

### Which is updated more often, M3 Mental Math or Slaagtaal?

M3 Mental Math ships an update every 6 weeks, and Slaagtaal daily. Most recently, M3 Mental Math was updated on October 6, 2026 and Slaagtaal on October 13, 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.*