# Mischievous Memory vs Schulte Grid

The clearest difference is update cadence: Mischievous Memory at every 4 days against Schulte Grid's every 2 weeks. Schulte Grid's advantage is iOS requirement (13.0 vs 17.6). 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.

Mischievous Memory ships an update every 4 days, Schulte Grid every 2 weeks. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Mischievous Memory | Schulte Grid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 35 MB | 55 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Koichi Takahashi](https://appshunter.io/developer/1809496505) | [余芳 伍](https://appshunter.io/developer/1229314116) |

## What reviewers say

### Mischievous Memory

[App page](https://appshunter.io/ios/app/mischievous-memory/id6759010426)

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

**In-app purchases:** none


### Schulte Grid

[App page](https://appshunter.io/ios/app/schulte-grid-brain-training/id6810313541)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mischievous Memory free?

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

### Is Schulte Grid free?

Schulte Grid is free to download, with no in-app purchases.

### Do Mischievous Memory or Schulte Grid have ads?

Both Mischievous Memory and Schulte Grid show ads.

### Which is updated more often, Mischievous Memory or Schulte Grid?

Mischievous Memory ships an update every 4 days, and Schulte Grid every 2 weeks. Most recently, Mischievous Memory was updated on October 6, 2026 and Schulte Grid on October 9, 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.*