# 3n or Not vs AIの中を見る：画像認識AIのしくみ入門

The clearest difference is in-app purchases: 3n or Not at none against AIの中を見る：画像認識AIのしくみ入門's 1. 3n or Not also leads on iOS requirement (14.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. AIの中を見る：画像認識AIのしくみ入門 sells 1 one-off in-app purchase. 3n or Not asks for nothing beyond the download.

## The numbers

| Metric | 3n or Not | AIの中を見る：画像認識AIのしくみ入門 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/3n-or-not/id913003589/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 95.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | — |
| Monetization | Ad-supported | — |
| Size | 13 MB | 19 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ninicode](https://appshunter.io/developer/647989501) | [Masamichi Nakada](https://appshunter.io/developer/1616494891) |

## What reviewers say

### 3n or Not

[App page](https://appshunter.io/ios/app/3n-or-not/id913003589)

Test your quick thinking with this educational game.  It challenges you to rapidly identify if a given number is divisible by three. Perfect for practicing mental math skills.

**Highlights:** Quick number discrimination, Multiple of 3 identification, Mental math practice, Educational game

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

**In-app purchases:** none


### AIの中を見る：画像認識AIのしくみ入門

[App page](https://appshunter.io/ios/app/aiai/id6794784495)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全ての機能を解放 | $3.99 | one-time |


## Frequently asked questions

### Is 3n or Not free?

3n or Not is free to download, with no in-app purchases.

### Is AIの中を見る：画像認識AIのしくみ入門 free?

AIの中を見る：画像認識AIのしくみ入門 is free to download, with in-app purchases available.

### Do 3n or Not or AIの中を見る：画像認識AIのしくみ入門 have ads?

Both 3n or Not and AIの中を見る：画像認識AIのしくみ入門 show ads.

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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.*