# CHANGYUN vs HF Prime

The clearest difference is update cadence: CHANGYUN at every 2 months against HF Prime's every 8 months. 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.

CHANGYUN ships an update every 2 months, HF Prime every 8 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CHANGYUN | HF Prime |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Size | 48 MB | 178 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [江苏行运兔互联网科技有限公司](https://appshunter.io/developer/1536117598) | [Hifocus](https://appshunter.io/developer/1579015771) |

## What reviewers say

### CHANGYUN

[App page](https://appshunter.io/ios/app/changyun/id6474402926)

**Features:** macOS Compatibility

**In-app purchases:** none


### HF Prime

[App page](https://appshunter.io/ios/app/hf-prime/id6742095112)

**In-app purchases:** none


## Frequently asked questions

### Is CHANGYUN free?

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

### Is HF Prime free?

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

### Do CHANGYUN or HF Prime have ads?

Neither CHANGYUN nor HF Prime shows ads.

### Which is updated more often, CHANGYUN or HF Prime?

CHANGYUN ships an update every 2 months, and HF Prime every 8 months. Most recently, CHANGYUN was updated on October 30, 2026 and HF Prime on October 25, 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.*