# 磨叽时钟 vs MindSpan Memory Booster

The clearest difference is review sentiment: 磨叽时钟 at 75% against MindSpan Memory Booster's 0%. 磨叽时钟 also leads on iOS requirement (6.0 vs 15.6). MindSpan Memory Booster's advantage is update cadence (fortnightly vs every 42 months). 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.

磨叽时钟 ships an update every 42 months, MindSpan Memory Booster fortnightly. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 磨叽时钟 | MindSpan Memory Booster |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 37 MB | 5 MB |
| Requires iOS | **6.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Extransit](https://appshunter.io/developer/492614145) | [Bothina Elzoobi](https://appshunter.io/developer/991489487) |

## What reviewers say

### 磨叽时钟

[App page](https://appshunter.io/ios/app/id767396101)

**Features:** macOS Compatibility

**In-app purchases:** none


### MindSpan Memory Booster

[App page](https://appshunter.io/ios/app/mindspan-memory-booster/id1111781150)

Train your working memory with a simple yet challenging game. Observe moving shapes and recall their details like color and pattern to progress. Improve your cognitive skills essential for learning and focus.

**Highlights:** Observe and recall moving geometric shapes, Identify shape, color, and pattern, Increasing difficulty with speed and complexity, Trains working memory and cognitive skills, Focuses on fluid intelligence and learning ability

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

**In-app purchases:** none


## Frequently asked questions

### Is 磨叽时钟 free?

磨叽时钟 is free to download, with no in-app purchases.

### Is MindSpan Memory Booster free?

MindSpan Memory Booster is free to download, with no in-app purchases.

### Do 磨叽时钟 or MindSpan Memory Booster have ads?

Neither 磨叽时钟 nor MindSpan Memory Booster shows ads.

### Which is updated more often, 磨叽时钟 or MindSpan Memory Booster?

磨叽时钟 ships an update every 42 months, and MindSpan Memory Booster fortnightly. Most recently, 磨叽时钟 was updated on October 8, 2026 and MindSpan Memory Booster on October 2, 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.*