# 火星语 vs 海草集IM

The clearest difference is update cadence: 火星语 at every 5 days against 海草集IM's every 3 weeks. 海草集IM's advantage is iOS requirement (10.0 vs 12.0). 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.

火星语 ships an update every 5 days, 海草集IM every 3 weeks. The most recent releases landed on May 16, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 火星语 | 海草集IM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 44 MB | 135 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qian Yun Network Service Co., Ltd.](https://appshunter.io/developer/1567568557) | [Tianjin Haicaoji Biotechnology Co., Ltd.](https://appshunter.io/developer/1522237926) |

## What reviewers say

### 火星语

[App page](https://appshunter.io/ios/app/id1579320044)

**Features:** macOS Compatibility

**In-app purchases:** none


### 海草集IM

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 火星语 free?

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

### Is 海草集IM free?

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

### Do 火星语 or 海草集IM have ads?

Neither 火星语 nor 海草集IM shows ads.

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

火星语 ships an update every 5 days, and 海草集IM every 3 weeks. Most recently, 火星语 was updated on May 16, 2026 and 海草集IM on September 19, 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.*