# 海草集IM vs 云信IM

The clearest difference is update cadence: 海草集IM at every 3 weeks against 云信IM's every 5 weeks. 海草集IM also leads on iOS requirement (10.0 vs 13.0). 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.

海草集IM ships an update every 3 weeks, 云信IM every 5 weeks. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 海草集IM | 云信IM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | — | Free |
| Size | 135 MB | 153 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Tianjin Haicaoji Biotechnology Co., Ltd.](https://appshunter.io/developer/1522237926) | [杭州网易质云科技有限公司](https://appshunter.io/developer/1385930520) |

## What reviewers say

### 海草集IM

[App page](https://appshunter.io/ios/app/im/id6474714535)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 海草集IM free?

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

### Is 云信IM free?

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

### Do 海草集IM or 云信IM have ads?

Neither 海草集IM nor 云信IM shows ads.

### Which is updated more often, 海草集IM or 云信IM?

海草集IM ships an update every 3 weeks, and 云信IM every 5 weeks. Most recently, 海草集IM was updated on September 19, 2026 and 云信IM on September 20, 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.*