# カードゲーム『XENON vs Smart Mahjong

The clearest difference is rating: Smart Mahjong at 4.5 against カードゲーム『XENON's 1.0. Smart Mahjong also leads on in-app purchases (none vs 2) and review sentiment (60% vs 37%). カードゲーム『XENON's advantage is ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price, ratings volume and monetization model there is nothing between them.

Both are free to download. カードゲーム『XENON sells 2 one-off in-app purchases. Smart Mahjong asks for nothing beyond the download.

Smart Mahjong holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 37% of カードゲーム『XENON's written reviews are positive against 60% of Smart Mahjong's.

カードゲーム『XENON ships an update weekly, Smart Mahjong every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | カードゲーム『XENON | Smart Mahjong |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/xenon/id1528506567/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/smart-mahjong/id1621669217/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 37.0% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 126 MB | 45 MB |
| Requires iOS | **11.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shuhei Edagawa](https://appshunter.io/developer/1528506569) | [KAZUYA KIMURA](https://appshunter.io/developer/1455105273) |

## What reviewers say

### カードゲーム『XENON

[App page](https://appshunter.io/ios/app/xenon/id1528506567)

A strategic card game where players draw cards and play them to achieve victory. Different game modes and card effects add depth to the gameplay. Manage your hand carefully to avoid losing.

**Highlights:** Multiple game modes (Basic, Double, Two Card, etc.), Unique card effects (Hero, Emperor, Spirit, etc.), Rank-based card system (1-10), Hand management and strategic play, Online and COM対戦 (Computer Battles)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| XENONの開発を応援します。 | $2.99 | one-time |
| XENON-広告非表示 | $2.99 | one-time |

**What reviewers like**

- 👍 Game is fun and engaging
- 👍 Good for playing with friends/family
- 👍 Recreates XENO rules well
- 👍 Fast-paced gameplay
- 👍 AI is challenging

**What reviewers complain about**

- 🐛 Frequent freezes and crashes
- 🐛 Ads are intrusive and annoying
- 🐛 Rate system is unfair (losing more than gaining)
- 🐛 Game starts with bugs/unresponsive
- 🐛 Game data is too heavy/slows down

**Reported bugs**

- App freezes on match start
- App freezes after certain game events (e.g., Emperor vs. Hero)
- App freezes after replaying a game
- App freezes during online matches
- App freezes after purchasing ads removal

**Requested features**

- Add friend/private match feature
- Option to choose 'face-to-face' rule for 6
- Add chat or voice chat feature
- Improve AI difficulty/level adjustment
- Allow card customization visibility to opponents


### Smart Mahjong

[App page](https://appshunter.io/ios/app/smart-mahjong/id1621669217)

Instantly calculate Mahjong scores by scanning tiles with your camera. View yaku, han, and fu to understand scoring mechanics. This app is continuously updated based on user feedback.

**Highlights:** Camera-based tile recognition, Instant score calculation, Displays yaku, han, and fu, Score learning tool, User feedback integration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is カードゲーム『XENON free?

カードゲーム『XENON is free to download, with in-app purchases available.

### Is Smart Mahjong free?

Smart Mahjong is free to download, with no in-app purchases.

### Which has better reviews, カードゲーム『XENON or Smart Mahjong?

Smart Mahjong is rated higher. カードゲーム『XENON averages 1.0 out of 5 from 1 ratings, while Smart Mahjong averages 4.5 from 2 ratings.

### Do カードゲーム『XENON or Smart Mahjong have ads?

Smart Mahjong shows ads; カードゲーム『XENON does not.

### Which is updated more often, カードゲーム『XENON or Smart Mahjong?

カードゲーム『XENON ships an update weekly, and Smart Mahjong every 3 weeks. Most recently, カードゲーム『XENON was updated on November 3, 2026 and Smart Mahjong on November 3, 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.*