# 数独大闯关 vs Ping Pong Training Master

The clearest difference is update cadence: Ping Pong Training Master at every 8 days against 数独大闯关's every 3 weeks. 数独大闯关's advantage is iOS requirement (10.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

数独大闯关 ships an update every 3 weeks, Ping Pong Training Master every 8 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 数独大闯关 | Ping Pong Training Master |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Size | 87 MB | 62 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [晨龙 李](https://appshunter.io/developer/1674072313) | [磊 余](https://appshunter.io/developer/1352252243) |

## What reviewers say

### 数独大闯关

[App page](https://appshunter.io/ios/app/id1632165584)

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

**In-app purchases:** none


### Ping Pong Training Master

[App page](https://appshunter.io/ios/app/ping-pong-training-master/id6783174486)

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

**In-app purchases:** none


## Frequently asked questions

### Is 数独大闯关 free?

数独大闯关 is free to download, with no in-app purchases.

### Is Ping Pong Training Master free?

Ping Pong Training Master is free to download, with no in-app purchases.

### Do 数独大闯关 or Ping Pong Training Master have ads?

Both 数独大闯关 and Ping Pong Training Master show ads.

### Which is updated more often, 数独大闯关 or Ping Pong Training Master?

数独大闯关 ships an update every 3 weeks, and Ping Pong Training Master every 8 days. Most recently, 数独大闯关 was updated on November 3, 2026 and Ping Pong Training Master on November 5, 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.*