# HK P.4 Math vs 家庭積分卡

The clearest difference is in-app purchases: 家庭積分卡 at none against HK P.4 Math's 1. HK P.4 Math's advantage is iOS requirement (9.0 vs 13.4). On price, ads and device support there is nothing between them.

Both are free to download. HK P.4 Math sells 1 one-off in-app purchase. 家庭積分卡 asks for nothing beyond the download.

## The numbers

| Metric | HK P.4 Math | 家庭積分卡 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Size | 5 MB | 27 MB |
| Requires iOS | **9.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yik Lam Leung](https://appshunter.io/developer/1215582728) | [北京奥软科技有限公司](https://appshunter.io/developer/598854232) |

## What reviewers say

### HK P.4 Math

[App page](https://appshunter.io/ios/app/hk-p4-math/id1454251214)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HK P.4 Math(Full Version) | $0.99 | one-time |


### 家庭積分卡

[App page](https://appshunter.io/ios/app/id6581482136)

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

**In-app purchases:** none


## Frequently asked questions

### Is HK P.4 Math free?

HK P.4 Math is free to download, with in-app purchases available.

### Is 家庭積分卡 free?

家庭積分卡 is free to download, with no in-app purchases.

### Do HK P.4 Math or 家庭積分卡 have ads?

Neither HK P.4 Math nor 家庭積分卡 shows ads.

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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.*