# Mathmory vs Dudoku

The clearest difference is update cadence: Dudoku at every 2 days against Mathmory's every 3 months. Mathmory's advantage is iOS requirement (12.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Mathmory sells 1 one-off in-app purchase and Dudoku sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Mathmory ships an update every 3 months, Dudoku every 2 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Mathmory | Dudoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 41 MB | 18 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bilge Acilikaya](https://appshunter.io/developer/959377817) | [Konstanty Koszewski](https://appshunter.io/developer/1871696981) |

## What reviewers say

### Mathmory

[App page](https://appshunter.io/ios/app/mathmory-math-and-memory-game/id6740012501)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 15 Hint Coin | $1.19 | one-time |


### Dudoku

[App page](https://appshunter.io/ios/app/dudoku-sudoku-brain-training/id6758238799)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dudoku Monthly Premium | $3.99 | per month |
| Dudoku Yearly Premium | $19.99 | per year |


## Frequently asked questions

### Is Mathmory free?

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

### Is Dudoku free?

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

### Do Mathmory or Dudoku have ads?

Both Mathmory and Dudoku show ads.

### Which is updated more often, Mathmory or Dudoku?

Mathmory ships an update every 3 months, and Dudoku every 2 days. Most recently, Mathmory was updated on October 30, 2026 and Dudoku on November 5, 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.*