# 云信IM vs RustFan

The clearest difference is update cadence: RustFan at every 10 days against 云信IM's every 5 weeks. 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.

云信IM ships an update every 5 weeks, RustFan every 10 days. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 云信IM | RustFan |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | Free | — |
| Size | 157 MB | 41 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [杭州网易质云科技有限公司](https://appshunter.io/developer/1385930520) | [Jun Li](https://appshunter.io/developer/1190914894) |

## What reviewers say

### 云信IM

[App page](https://appshunter.io/ios/app/im/id6479977952)

Experience a demonstration of instant messaging capabilities powered by NetEase Yunxin. This demo app showcases features like conversations, contact lists, and session management, built on over two decades of IM technology.

**Highlights:** Instant messaging service demo, Conversation management, Session list display, Contact book functionality, Real-time network capabilities, SDK and API integration

**In-app purchases:** none


### RustFan

[App page](https://appshunter.io/ios/app/rustfan-tech-and-resources/id6757207234)

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

**In-app purchases:** none


## Frequently asked questions

### Is 云信IM free?

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

### Is RustFan free?

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

### Do 云信IM or RustFan have ads?

Neither 云信IM nor RustFan shows ads.

### Which is updated more often, 云信IM or RustFan?

云信IM ships an update every 5 weeks, and RustFan every 10 days. Most recently, 云信IM was updated on October 7, 2026 and RustFan on October 6, 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.*