# 倫理の王様 vs ココタン

The clearest difference is in-app purchases: ココタン at none against 倫理の王様's 3. ココタン also leads on ads (none vs shown) and update cadence (every 3 days vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 倫理の王様 sells 3 in-app purchases, starting at $3.49 per month. ココタン asks for nothing beyond the download.

倫理の王様 ships an update every 5 weeks, ココタン every 3 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 倫理の王様 | ココタン |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/and/id1547955470/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 138 MB | 82 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HANAUTA INC.](https://appshunter.io/developer/492009717) | [KOKOMIRAI, K.K.](https://appshunter.io/developer/1663398018) |

## What reviewers say

### 倫理の王様

[App page](https://appshunter.io/ios/app/and/id1547955470)

This app offers a fun, quiz-like approach to learning ethics for high school students. It features over 1500 questions in various formats, designed for efficient memorization and exam preparation. Play sessions are short, making it suitable for quick study sessions.

**Highlights:** Over 1500 ethics questions, Q/A and multiple-choice formats, Short play sessions for quick study, Game-like progression with stages, Rewards for clearing quests, Adheres to high school guidelines

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 特訓プラン | $3.49 | per month |
| 特訓プラン | $16.99 | per 6 months |
| 特訓プラン | $26.99 | per year |


### ココタン

[App page](https://appshunter.io/ios/app/id6642667955)

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

**In-app purchases:** none


## Frequently asked questions

### Is 倫理の王様 free?

倫理の王様 is free to download, with in-app purchases available.

### Is ココタン free?

ココタン is free to download, with no in-app purchases.

### Do 倫理の王様 or ココタン have ads?

倫理の王様 shows ads; ココタン does not.

### Which is updated more often, 倫理の王様 or ココタン?

倫理の王様 ships an update every 5 weeks, and ココタン every 3 days. Most recently, 倫理の王様 was updated on November 3, 2026 and ココタン on November 4, 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.*