# COMPLEX 01 vs Mahjong Training

The clearest difference is in-app purchases: COMPLEX 01 at none against Mahjong Training's 1. Mahjong Training's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Mahjong Training sells 1 one-off in-app purchase. COMPLEX 01 asks for nothing beyond the download.

## The numbers

| Metric | COMPLEX 01 | Mahjong Training |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 2 months |
| Size | 87 MB | 146 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [EXCELSIOR SOLUTIONS AND SERVICES JOINT STOCK COMPANY](https://appshunter.io/developer/1689528619) | [捷 胡](https://appshunter.io/developer/1716308769) |

## What reviewers say

### COMPLEX 01

[App page](https://appshunter.io/ios/app/complex-01/id6449518871)

**In-app purchases:** none


### Mahjong Training

[App page](https://appshunter.io/ios/app/mahjong-training-be-a-master/id6472035775)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mahjong Master Pro | $17.99 | one-time |


## Frequently asked questions

### Is COMPLEX 01 free?

COMPLEX 01 is free to download, with no in-app purchases.

### Is Mahjong Training free?

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

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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.*