# Smart Mahjong vs A Simple Dice

The clearest difference is in-app purchases: Smart Mahjong at none against A Simple Dice's 1. A Simple Dice's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.5). On price, update cadence and ads there is nothing between them.

Both are free to download. A Simple Dice sells 1 one-off in-app purchase. Smart Mahjong asks for nothing beyond the download.

Smart Mahjong ships an update every 3 weeks, A Simple Dice fortnightly. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Smart Mahjong | A Simple Dice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/smart-mahjong/id1621669217/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 35 MB |
| Requires iOS | 18.5 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [KAZUYA KIMURA](https://appshunter.io/developer/1455105273) | [Larry Works](https://appshunter.io/developer/1701632846) |

## What reviewers say

### 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


### A Simple Dice

[App page](https://appshunter.io/ios/app/a-simple-dice/id6502541823)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Smart Mahjong free?

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

### Is A Simple Dice free?

A Simple Dice is free to download, with in-app purchases available.

### Do Smart Mahjong or A Simple Dice have ads?

Both Smart Mahjong and A Simple Dice show ads.

### Which is updated more often, Smart Mahjong or A Simple Dice?

Smart Mahjong ships an update every 3 weeks, and A Simple Dice fortnightly. Most recently, Smart Mahjong was updated on September 22, 2026 and A Simple Dice on September 14, 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.*