# 都道府県かるたタイムアタックPro vs Mahjong Skill Builder

The clearest difference is price: Mahjong Skill Builder at Free against 都道府県かるたタイムアタックPro's $0.99. Mahjong Skill Builder also leads on update cadence (every 5 days vs every 42 months) and iOS requirement (15.1 vs 18.0). 都道府県かるたタイムアタックPro's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Mahjong Skill Builder is free to download; 都道府県かるたタイムアタックPro costs $0.99 up front. Mahjong Skill Builder sells 2 in-app purchases, starting at $0.99 per month. 都道府県かるたタイムアタックPro asks for nothing beyond the download.

都道府県かるたタイムアタックPro ships an update every 42 months, Mahjong Skill Builder every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 都道府県かるたタイムアタックPro | Mahjong Skill Builder |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 42 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 44 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Sato](https://appshunter.io/developer/1629194164) | [Keita Ide](https://appshunter.io/developer/1804599366) |

## What reviewers say

### 都道府県かるたタイムアタックPro

[App page](https://appshunter.io/ios/app/pro/id1635012480)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mahjong Skill Builder

[App page](https://appshunter.io/ios/app/mahjong-skill-builder/id6759558674)

Master Mahjong scoring with structured practice. Learn to identify yaku, calculate han and fu, and determine final scores through five progressive training modes. Track your progress and improve your game with realistic hands and quick, randomized sessions.

**Highlights:** Master Mahjong scoring, Learn yaku and han values, Calculate fu and final points, Five progressive training modes, Realistic hand scenarios, Progress tracking and feedback, Quick, randomized sessions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skill Builder Premium Monthly | $0.99 | per month |
| Skill Builder Premium Yearly | $9.99 | per year |


## Frequently asked questions

### Is 都道府県かるたタイムアタックPro free?

都道府県かるたタイムアタックPro costs $0.99, with no in-app purchases.

### Is Mahjong Skill Builder free?

Mahjong Skill Builder is free to download, with in-app purchases available.

### Do 都道府県かるたタイムアタックPro or Mahjong Skill Builder have ads?

Mahjong Skill Builder shows ads; 都道府県かるたタイムアタックPro does not.

### Which is updated more often, 都道府県かるたタイムアタックPro or Mahjong Skill Builder?

都道府県かるたタイムアタックPro ships an update every 42 months, and Mahjong Skill Builder every 5 days. Most recently, 都道府県かるたタイムアタックPro was updated on November 3, 2026 and Mahjong Skill Builder on October 31, 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.*