# SUDOKU BLOX vs Zanzou

The clearest difference is update cadence: SUDOKU BLOX at fortnightly against Zanzou's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SUDOKU BLOX sells 1 one-off in-app purchase and Zanzou sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SUDOKU BLOX ships an update fortnightly, Zanzou every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | SUDOKU BLOX | Zanzou |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 3 months |
| Size | 11 MB | 9 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Leo Rivas-Micoud](https://appshunter.io/developer/302776955) | [atsuko imai](https://appshunter.io/developer/1830783417) |

## What reviewers say

### SUDOKU BLOX

[App page](https://appshunter.io/ios/app/sudoku-blox-brain-training/id6754335564)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Zanzou

[App page](https://appshunter.io/ios/app/zanzou-visual-memory/id6761885740)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zanzou Plus – Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is SUDOKU BLOX free?

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

### Is Zanzou free?

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

### Do SUDOKU BLOX or Zanzou have ads?

Both SUDOKU BLOX and Zanzou show ads.

### Which is updated more often, SUDOKU BLOX or Zanzou?

SUDOKU BLOX ships an update fortnightly, and Zanzou every 3 months. Most recently, SUDOKU BLOX was updated on October 24, 2026 and Zanzou on October 24, 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.*