# Memory Brain Game Online vs Defense Block

The clearest difference is in-app purchases: Defense Block at none against Memory Brain Game Online's 2. Defense Block also leads on update cadence (daily vs every 7 months). Memory Brain Game Online's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Memory Brain Game Online sells 2 one-off in-app purchases. Defense Block asks for nothing beyond the download.

Memory Brain Game Online ships an update every 7 months, Defense Block daily. The most recent releases landed on October 10, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Memory Brain Game Online | Defense Block |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Daily** |
| Size | 227 MB | 191 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Tran Viet](https://appshunter.io/developer/1498967947) | [won jong jang](https://appshunter.io/developer/1819208057) |

## What reviewers say

### Memory Brain Game Online

[App page](https://appshunter.io/ios/app/memory-brain-game-online/id6450265200)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Hints | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |


### Defense Block

[App page](https://appshunter.io/ios/app/defense-block/id6749526192)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Memory Brain Game Online free?

Memory Brain Game Online is free to download, with in-app purchases available.

### Is Defense Block free?

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

### Do Memory Brain Game Online or Defense Block have ads?

Both Memory Brain Game Online and Defense Block show ads.

### Which is updated more often, Memory Brain Game Online or Defense Block?

Memory Brain Game Online ships an update every 7 months, and Defense Block daily. Most recently, Memory Brain Game Online was updated on October 10, 2026 and Defense Block on October 19, 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.*