# シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 vs Hanafuda･Koi Koi

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 Hanafuda･Koi Koi's 1. シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 also leads on update cadence (every 11 days vs every 5 weeks). Hanafuda･Koi Koi's advantage is ratings volume (559 vs 21) and review sentiment (56% vs 47%). On price, rating, ads and device support there is nothing between them.

Both are free to download. Hanafuda･Koi Koi sells 1 one-off in-app purchase. 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 Hanafuda･Koi Koi. That said, the two scores are not equally well evidenced: Hanafuda･Koi Koi has 559 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 56% of Hanafuda･Koi Koi'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, Hanafuda･Koi Koi every 5 weeks. Both last shipped on November 6, 2026.

## The numbers

| Metric | シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 | Hanafuda･Koi Koi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (21 ratings)](https://appshunter.io/ios/app/ai/id1128629421/reviews)** | [4.6 (559 ratings)](https://appshunter.io/ios/app/hanafudakoi-koi/id1339558217/reviews) |
| Number of ratings | 21 | **559** |
| Positive reviews | 47.2% of reviews | **56.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Every 5 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 36 MB | 134 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Merses, Inc.](https://appshunter.io/developer/1128629420) | [慧 姚](https://appshunter.io/developer/1339558216) |

## 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


### Hanafuda･Koi Koi

[App page](https://appshunter.io/ios/app/hanafudakoi-koi/id1339558217)

Experience a traditional Japanese card game played with Hanafuda cards. The objective is to form specific card combinations, known as 'yaku', before your opponent. Choose to cash in your points or continue playing for higher scores by saying 'koi-koi'.

**Highlights:** Play traditional Japanese card game, Use Hanafuda cards, Form 'yaku' card combinations, Score points by making combinations, Option to 'koi-koi' for more points

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |

**What reviewers like**

- 👍 Excellent for learning how to play koi-koi
- 🎮 Well-coded AI opponent with good difficulty levels
- 🎨 Beautiful card designs and smooth animations
- 📱 Playable offline without Wi-Fi
- ⚡ Fast and responsive gameplay

**What reviewers complain about**

- 📺 Excessive and aggressive advertisements
- 🔊 Ads are loud and disruptive to music
- 🐛 Ads frequently crash the app
- 📱 Poor display on newer iPhone models (notch obstruction)
- 🔤 Incomplete English translation (Japanese/Chinese text remains)

**Reported bugs**

- App crashes frequently, especially with Facebook ads
- Ads freeze without countdown timer
- Ads lack close buttons or are difficult to close
- App crashes on startup (some devices)
- Music/BGM not working properly

**Requested features**

- Multiplayer functionality (online or local)
- Ability to review scored cards during koi-koi decision
- Landscape mode support with better card visibility
- Option to cancel card selection after dragging
- Full English translation of all game elements


## 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 Hanafuda･Koi Koi free?

Hanafuda･Koi Koi 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 Hanafuda･Koi Koi?

シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 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 Hanafuda･Koi Koi averages 4.6 from 559 ratings.

### Do シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 or Hanafuda･Koi Koi have ads?

Both シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 and Hanafuda･Koi Koi show ads.

### Which is updated more often, シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 or Hanafuda･Koi Koi?

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 Hanafuda･Koi Koi every 5 weeks. Most recently, シンプル麻雀〜初心者も遊べるAI対戦麻雀〜 was updated on November 6, 2026 and Hanafuda･Koi Koi on November 6, 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.*