# Kai Hanzi vs Pengu HSK

The clearest difference is iOS requirement: Pengu HSK at 15.0 against Kai Hanzi's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Kai Hanzi sells 3 in-app purchases, starting at $2.99 per month and Pengu HSK sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Kai Hanzi | Pengu HSK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Size | 127 MB | 60 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Khanh Nguyen](https://appshunter.io/developer/6782299490) | [Kaka Nguyen](https://appshunter.io/developer/6791401279) |

## What reviewers say

### Kai Hanzi

[App page](https://appshunter.io/ios/app/kai-hanzi/id6782299488)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kai Pro - Gói 1 Tháng | $2.99 | per month |
| Kai Pro - Gói 6 tháng | $14.99 | per 6 months |
| Kai Pro - Gói 12 Tháng | $24.99 | per year |


### Pengu HSK

[App page](https://appshunter.io/ios/app/pengu-hsk/id6798075779)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gói Premium 1 Tháng | $2.99 | one-time |
| Gói Premium 3 Tháng | $5.99 | one-time |
| Gói Premium 1 Năm | $14.99 | one-time |


## Frequently asked questions

### Is Kai Hanzi free?

Kai Hanzi is free to download, with in-app purchases available.

### Is Pengu HSK free?

Pengu HSK is free to download, with in-app purchases available.

### Do Kai Hanzi or Pengu HSK have ads?

Neither Kai Hanzi nor Pengu HSK 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.*