# シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 vs マーダーミステリーＪ

The clearest difference is in-app purchases: シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 at none against マーダーミステリーＪ's 10. シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 also leads on review sentiment (47% vs 32%). マーダーミステリーＪ's advantage is ratings volume (3.7K vs 21). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. マーダーミステリーＪ sells 10 one-off in-app purchases. シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 against 4.6 for マーダーミステリーＪ. That said, the two scores are not equally well evidenced: マーダーミステリーＪ has 3.7K ratings behind it against 21, so its average is the more settled of the two. Written reviews are what separate them: 47% of シンプル麻雀〜初心者も遊べるAI対戦麻雀〜's written reviews are positive against 32% of マーダーミステリーＪ's.

シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 ships an update every 11 days, マーダーミステリーＪ weekly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 | マーダーミステリーＪ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (21 ratings)](https://appshunter.io/ios/app/ai/id1128629421/reviews) | **[4.6 (3.7K ratings)](https://appshunter.io/ios/app/id1521774189/reviews)** |
| Number of ratings | 21 | **3.7K** |
| Positive reviews | **47.2% of reviews** | 32.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | — |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 36 MB | 334 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Merses, Inc.](https://appshunter.io/developer/1128629420) | [Sorairo,inc.](https://appshunter.io/developer/641033856) |

## What reviewers say

### シンプル麻雀〜初心者も遊べるAI対戦麻雀〜

[App page](https://appshunter.io/ios/app/ai/id1128629421)

Enjoy fast-paced, AI-driven mahjong matches with no artificial "loading" of tiles. Compete daily to climb the ranks, earn unique titles, and win Amazon gift cards. Perfect for both beginners and experienced players looking to improve their skills.

**Highlights:** AI mahjong battles, Ranking system, Over 60 titles to earn, Monthly prize giveaways, Smooth gameplay

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

**In-app purchases:** none


### マーダーミステリーＪ

[App page](https://appshunter.io/ios/app/id1521774189)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| スペシャルスタンプ(ヒュー) | $3.99 | one-time |
| スペシャルスタンプ(マリアンヌ) | $3.99 | one-time |
| スペシャルスタンプ(ニック) | $3.99 | one-time |
| スペシャルスタンプ(ソフィア) | $3.99 | one-time |
| スペシャルスタンプ(チャン) | $3.99 | one-time |
| スペシャルスタンプ(カミラ) | $3.99 | one-time |
| スペシャルスタンプ(フレディ) | $3.99 | one-time |
| スペシャルスタンプ(アーニー) | $3.99 | one-time |
| なりきりキャラクター スペシャルバージョン2 | $24.99 | one-time |
| なりきりキャラクター 人狼J SPバージョン3 | $24.99 | one-time |

**What reviewers like**

- 👍 Interesting game concept
- 💡 Innovative game system
- 👍 High quality graphics and sound
- 👍 Flexible game balance adjustments
- 👍 Good for role-playing

**What reviewers complain about**

- 😞 Overwhelmingly negative player community
- 😞 Lack of players (overcrowding)
- 😞 Difficult for beginners to learn
- 😞 Poorly explained rules and terms
- 😞 Unfair game mechanics (item placement)

**Reported bugs**

- App crashes frequently
- App crashes when starting a match
- App crashes on title screen (title loop)
- Cannot exit spectator mode when game has already started
- Game is too unstable

**Requested features**

- Add new roles
- Add more maps
- Add more beginner rooms
- Improve tutorial/rule explanations
- Add more varied room configurations


## Frequently asked questions

### Is シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 free?

シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 is free to download, with no in-app purchases.

### Is マーダーミステリーＪ free?

マーダーミステリーＪ is free to download, with in-app purchases available.

### Which has better reviews, シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 or マーダーミステリーＪ?

マーダーミステリーＪ is rated higher. シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 averages 4.6 out of 5 from 21 ratings, while マーダーミステリーＪ averages 4.6 from 3.7K ratings.

### Which is updated more often, シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 or マーダーミステリーＪ?

シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 ships an update every 11 days, and マーダーミステリーＪ weekly. Most recently, シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 was updated on October 26, 2026 and マーダーミステリーＪ on October 25, 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.*