# HFI One vs 紫杭

The clearest difference is update cadence: HFI One at every 3 days against 紫杭's every 2 months. 紫杭's advantage is iOS requirement (15.0 vs 17.0). 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.

HFI One ships an update every 3 days, 紫杭 every 2 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | HFI One | 紫杭 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 months |
| Size | 15 MB | 23 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [恩澄 许](https://appshunter.io/developer/1888657735) | [Beijing Zihang Brilliant Technology Co., Ltd](https://appshunter.io/developer/6779081661) |

## What reviewers say

### HFI One

[App page](https://appshunter.io/ios/app/hfi-one/id6777857576)

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

**In-app purchases:** none


### 紫杭

[App page](https://appshunter.io/ios/app/id6779081658)

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

**In-app purchases:** none


## Frequently asked questions

### Is HFI One free?

HFI One is free to download, with no in-app purchases.

### Is 紫杭 free?

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

### Do HFI One or 紫杭 have ads?

Neither HFI One nor 紫杭 shows ads.

### Which is updated more often, HFI One or 紫杭?

HFI One ships an update every 3 days, and 紫杭 every 2 months. Most recently, HFI One was updated on October 31, 2026 and 紫杭 on October 31, 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.*