# 苗字捜査官 vs MindSpark

The clearest difference is in-app purchases: 苗字捜査官 at none against MindSpark's 1. 苗字捜査官 also leads on update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MindSpark sells 1 one-off in-app purchase. 苗字捜査官 asks for nothing beyond the download.

苗字捜査官 ships an update every 2 days, MindSpark every 2 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 苗字捜査官 | MindSpark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Size | 7 MB | 6 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kai Inoue](https://appshunter.io/developer/1870824246) | [MIZOU, CO., LTD.](https://appshunter.io/developer/1542553141) |

## What reviewers say

### 苗字捜査官

[App page](https://appshunter.io/ios/app/high-and-low/id6758095082)

**Features:** macOS Compatibility

**In-app purchases:** none


### MindSpark

[App page](https://appshunter.io/ios/app/mindspark-brain-age-test/id6789515695)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is 苗字捜査官 free?

苗字捜査官 is free to download, with no in-app purchases.

### Is MindSpark free?

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

### Do 苗字捜査官 or MindSpark have ads?

Both 苗字捜査官 and MindSpark show ads.

### Which is updated more often, 苗字捜査官 or MindSpark?

苗字捜査官 ships an update every 2 days, and MindSpark every 2 weeks. Most recently, 苗字捜査官 was updated on October 31, 2026 and MindSpark on November 5, 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.*