# Mahjong Calc Trainer vs 悪魔のHighLow

The clearest difference is in-app purchases: Mahjong Calc Trainer at none against 悪魔のHighLow's 6. 悪魔のHighLow's advantage is ads (none vs shown) and update cadence (every 4 days vs every 5 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 悪魔のHighLow sells 6 one-off in-app purchases. Mahjong Calc Trainer asks for nothing beyond the download.

Mahjong Calc Trainer ships an update every 5 months, 悪魔のHighLow every 4 days. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Mahjong Calc Trainer | 悪魔のHighLow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/mahjong-calc-trainer/id600841067/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 47.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 25 MB | 46 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Satoshi Horiguchi](https://appshunter.io/developer/310504293) | [Ryohei Kataoka](https://appshunter.io/developer/1893547794) |

## What reviewers say

### Mahjong Calc Trainer

[App page](https://appshunter.io/ios/app/mahjong-calc-trainer/id600841067)

Practice calculating scores for Japanese-style Mahjong. This game app helps players improve their scoring accuracy. It's designed for quick and effective score calculation practice.

**Highlights:** Score calculation practice, Japanese style mah-jong focus, Game app for skill improvement, Quick score calculation

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

**In-app purchases:** none


### 悪魔のHighLow

[App page](https://appshunter.io/ios/app/highlow/id6794659673)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| シジミ100個 | $0.49 | one-time |
| シジミ500個 | $2.99 | one-time |
| シジミ1000個 | $5.99 | one-time |
| シジミ2000個 | $11.99 | one-time |
| シジミ5000個 | $29.99 | one-time |
| シジミ10000個 | $59.99 | one-time |


## Frequently asked questions

### Is Mahjong Calc Trainer free?

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

### Is 悪魔のHighLow free?

悪魔のHighLow is free to download, with in-app purchases available.

### Do Mahjong Calc Trainer or 悪魔のHighLow have ads?

Mahjong Calc Trainer shows ads; 悪魔のHighLow does not.

### Which is updated more often, Mahjong Calc Trainer or 悪魔のHighLow?

Mahjong Calc Trainer ships an update every 5 months, and 悪魔のHighLow every 4 days. Most recently, Mahjong Calc Trainer was updated on October 21, 2026 and 悪魔のHighLow on October 15, 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.*