# Memory Brain Trainer (Math) vs 驯词奇遇岛

The clearest difference is update cadence: 驯词奇遇岛 at every 11 days against Memory Brain Trainer (Math)'s every 3 months. Memory Brain Trainer (Math)'s advantage is iOS requirement (6.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Memory Brain Trainer (Math) ships an update every 3 months, 驯词奇遇岛 every 11 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | Memory Brain Trainer (Math) | 驯词奇遇岛 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Size | 57 MB | 6 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [KIDEO TECH LTD](https://appshunter.io/developer/905104364) | [杭州扶志科技有限公司](https://appshunter.io/developer/1651860833) |

## What reviewers say

### Memory Brain Trainer (Math)

[App page](https://appshunter.io/ios/app/memory-brain-trainer-math/id1020432770)

**Features:** macOS Compatibility

**In-app purchases:** none


### 驯词奇遇岛

[App page](https://appshunter.io/ios/app/id6799808922)

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

**In-app purchases:** none


## Frequently asked questions

### Is Memory Brain Trainer (Math) free?

Memory Brain Trainer (Math) is free to download, with no in-app purchases.

### Is 驯词奇遇岛 free?

驯词奇遇岛 is free to download, with no in-app purchases.

### Do Memory Brain Trainer (Math) or 驯词奇遇岛 have ads?

Neither Memory Brain Trainer (Math) nor 驯词奇遇岛 shows ads.

### Which is updated more often, Memory Brain Trainer (Math) or 驯词奇遇岛?

Memory Brain Trainer (Math) ships an update every 3 months, and 驯词奇遇岛 every 11 days. Most recently, Memory Brain Trainer (Math) was updated on November 6, 2026 and 驯词奇遇岛 on November 6, 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.*