# C2 Stroop Task vs AI先生　応用技術者試験

The clearest difference is price: AI先生　応用技術者試験 at Free against C2 Stroop Task's $3.99. C2 Stroop Task's advantage is ads (none vs shown) and iOS requirement (15.6 vs 17.6). On in-app purchases and device support there is nothing between them.

AI先生　応用技術者試験 is free to download; C2 Stroop Task costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | C2 Stroop Task | AI先生　応用技術者試験 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | — |
| Size | 1 MB | 4 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [reiko hori](https://appshunter.io/developer/1777370692) |

## What reviewers say

### C2 Stroop Task

[App page](https://appshunter.io/ios/app/c2-stroop-task/id1638265933)

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

**In-app purchases:** none


### AI先生　応用技術者試験

[App page](https://appshunter.io/ios/app/ai/id6738335800)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is C2 Stroop Task free?

C2 Stroop Task costs $3.99, with no in-app purchases.

### Is AI先生　応用技術者試験 free?

AI先生　応用技術者試験 is free to download, with no in-app purchases.

### Do C2 Stroop Task or AI先生　応用技術者試験 have ads?

AI先生　応用技術者試験 shows ads; C2 Stroop Task does not.

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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.*