# Riichi Mahjong Scoring Drill vs Tricky Triangle

The clearest difference is in-app purchases: Riichi Mahjong Scoring Drill at none against Tricky Triangle's 4. Tricky Triangle's advantage is review sentiment (100% vs 83%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Tricky Triangle sells 4 one-off in-app purchases. Riichi Mahjong Scoring Drill asks for nothing beyond the download.

Riichi Mahjong Scoring Drill ships an update every 10 days, Tricky Triangle every 2 weeks. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Riichi Mahjong Scoring Drill | Tricky Triangle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/tricky-triangle/id6779731352/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 82.6% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 108 MB | 67 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Kentaro Hosokawa](https://appshunter.io/developer/1465223051) | [xo9 LLC](https://appshunter.io/developer/6779731354) |

## What reviewers say

### Riichi Mahjong Scoring Drill

[App page](https://appshunter.io/ios/app/riichi-mahjong-scoring-drill/id1493166793)

Master Mahjong scoring with over 12,000 practical problems derived from actual game situations. This app offers customizable practice modes for all skill levels, from beginners learning hand values to intermediate players refining complex calculations. Track your progress with detailed statistics to improve accuracy and speed.

**Highlights:** Over 12,175 practical Mahjong scoring problems, Problems based on real game winning hands, Customizable practice modes for various needs, Time attack for speed-focused practice, Detailed performance statistics, Supports various local Mahjong rules

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

**In-app purchases:** none


### Tricky Triangle

[App page](https://appshunter.io/ios/app/tricky-triangle/id6779731352)

This classic peg-jumping puzzle challenges players to remove pegs by jumping over neighbors into empty holes. Progress through increasingly difficult boards across four unique shapes, with a single life per climb. Utilize hints or undo moves, but know that clean runs without them are required for leaderboard rankings.

**Highlights:** Peg-jumping puzzle mechanics, Four shapes and twenty boards, Single life per climb challenge, Built-in hint and undo system, Global leaderboard for clean runs, Offline play, Customizable themes and skins

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Level | $0.99 | one-time |
| Unlock Hexagons | $1.99 | one-time |
| Unlock Stars | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Riichi Mahjong Scoring Drill free?

Riichi Mahjong Scoring Drill is free to download, with no in-app purchases.

### Is Tricky Triangle free?

Tricky Triangle is free to download, with in-app purchases available.

### Do Riichi Mahjong Scoring Drill or Tricky Triangle have ads?

Both Riichi Mahjong Scoring Drill and Tricky Triangle show ads.

### Which is updated more often, Riichi Mahjong Scoring Drill or Tricky Triangle?

Riichi Mahjong Scoring Drill ships an update every 10 days, and Tricky Triangle every 2 weeks. Most recently, Riichi Mahjong Scoring Drill was updated on October 15, 2026 and Tricky Triangle on October 11, 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.*