# Mahjong Solo Issou — Compare Winning Tiles Riichi

> Riichi Mahjong training app for tile efficiency and logical discard decisions. (iPhone/iPad app by Hiroshi Oda.)

- Source: https://appshunter.io/ios/app/mahjong-solo-issou/id6755676628 (this page in markdown: same URL + `.md`)
- Developer: [Hiroshi Oda](https://appshunter.io/developer/1855470103)
- Category: Games, Board
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 55 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2025-12-01
- Data updated: 2026-07-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mahjong-solo-issou/id6755676628/reviews.md

## What is Mahjong Solo Issou?

Turn every draw into a better discard decision.
“Mahjong Solo Issou” is a solo riichi mahjong training app designed to improve tile efficiency and offensive decision-making.

Draw tiles automatically, choose what to discard each turn, and work your way toward tenpai. Track changes in shanten and ukeire, then compare your choices with recommended discards based on win probability and expected points.

Build stronger judgment through practice—not just intuition.

【Two Training Modes】
■ Practice Mode
Start with a random hand and a shuffled wall. Adapt to every draw and aim for tenpai in a realistic flow.

■ Learning Mode
Practice specific hand shapes and themes, including five-block hands, hands without a pair, multiple pairs, complex waits, and flush hands. You can also build a custom 14-tile hand and train from any position you choose.

【Key Features】
- Track shanten and ukeire while you play
- Compare your discard with recommended choices
- Review win probability and expected points
- See optimal plays and key turning points after each session
- Track your score and personal best
- Replay past sessions turn by turn
- Save favorite hands and practice them again
- Analyze tenpai rate, average tenpai turn, and thinking time
- Set a turn timer to 5, 30, or 60 seconds—or play without a limit
- Available in Japanese, English, and Chinese
Some learning content, play history, performance analytics, and ad removal require the Premium Plan.

【Recommended For】
- Beginners who are unsure what to discard
- Players who want to learn tile efficiency
- Players who want to consider both ukeire and hand value
- Anyone who wants to compare their decisions with recommended plays
- Players who want to repeat difficult hand shapes
- Anyone looking for focused mahjong practice in short sessions
Every discard is a chance to improve.
Train your decision-making with Mahjong Solo Issou.

## Key features

- Practice problems with detailed explanations
- Always-visible shanten count
- Win rate display
- Analysis tools for tenpai rate
- Replay training for weak patterns
- Offline support

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Plan | $3.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/mahjong-solo-issou/id6755676628/reviews.md

### 5/5 — a perfect mahjong app

*2026-03-26*

Please add Chinese supported

**Developer response:** Thank you for your review. I will add support for Chinese in the near future.

### 5/5 — a perfect mahjong app

*2026-02-22*

Chinese UI could be better.

**Developer response:** Thank you for your review. I will add support for Chinese in the near future.

### 5/5 — 能否添加商店内付费版本

*2026-02-08*

我想购买这个app，但是无法内购，因为没有美国信用卡和paypal

**Developer response:** Thank you for your review. I will add support for Chinese in the near future.

### 5/5 — Please add Chinese support

*2026-01-29*

A perfect mahjong app

**Developer response:** Thank you for your review. I will add support for Chinese in the near future.

## Frequently asked questions about Mahjong Solo Issou

### What is Mahjong Solo Issou?

Mahjong Solo Issou is a mobile application designed to help players improve their Riichi Mahjong skills, specifically focusing on tile efficiency and logical discard decisions. It offers a variety of practice problems and analysis tools to aid learning.

### Is Mahjong Solo Issou free to download?

Yes, Mahjong Solo Issou is available for free download. The app is supported by in-app purchases, offering additional value or features to users.

### Can I play Mahjong Solo Issou offline?

Yes, Mahjong Solo Issou supports offline play. This allows you to practice your Riichi Mahjong skills anytime and anywhere without needing an internet connection.

### What kind of practice problems does Mahjong Solo Issou offer?

The app provides a rich set of practice problems that test your thinking in practical situations. These problems focus on logical discard decisions and reaching tenpai faster, with detailed explanations for optimal discards.

### How does Mahjong Solo Issou help with learning tile efficiency?

Mahjong Solo Issou defines tile efficiency as choosing discards that advance shanten in the shortest path to tenpai. It helps you master these pure fundamentals by comparing winning tiles and providing clear breakdowns of optimal discards.

### What analysis tools are available in Mahjong Solo Issou?

Mahjong Solo Issou includes analysis tools to track and visualize your progress. You can monitor your tenpai rate and average turn count to see your improvement over time.

### What is the age rating for Mahjong Solo Issou?

Mahjong Solo Issou has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger players interested in learning Mahjong.

### How often is Mahjong Solo Issou updated?

The latest version of Mahjong Solo Issou is 0.3.2, and it was last updated on March 10, 2026. This suggests the app is actively maintained and improved by the developer.

## Version history (last 5 releases)

### 0.4.2 — 2026-07-30

I made some minor corrections.

### 0.4.1 — 2026-07-28

I made some minor corrections.

### 0.4.0 — 2026-07-26

Use the expected score as the criterion for selecting the recommended tile to play

### 0.3.9 — 2026-07-24

Usage limits per day have been removed.

### 0.3.7 — 2026-07-22

I made some minor corrections.

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## More apps by Hiroshi Oda

- [Mahjong Instant Score Training](https://appshunter.io/ios/app/mahjong-instant-score-training/id6757863489)
- [Mahjong Score Memo](https://appshunter.io/ios/app/mahjong-score-memo/id6759053546)
- [Mahjong Fold Dojo](https://appshunter.io/ios/app/mahjong-fold-dojo/id6763664588)

All apps by Hiroshi Oda: https://appshunter.io/developer/1855470103

## Related topics

[riichi](https://appshunter.io/ios/topics/riichi)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-31.*