# 蜗牛云讯 vs 大唐云信 IM

The clearest difference is update cadence: 大唐云信 IM at daily against 蜗牛云讯's every 6 weeks. 蜗牛云讯's advantage is iOS requirement (12.0 vs 15.0). 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.

蜗牛云讯 ships an update every 6 weeks, 大唐云信 IM daily. The most recent releases landed on October 30, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 蜗牛云讯 | 大唐云信 IM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1630156345/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 152 MB | 89 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Xiangtan snail Network Technology Engineering Co., Ltd.](https://appshunter.io/developer/1291248741) | [Wantong Cross-Border Supply Chain Limited](https://appshunter.io/developer/6805091233) |

## What reviewers say

### 蜗牛云讯

[App page](https://appshunter.io/ios/app/id1630156345)

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

**In-app purchases:** none


### 大唐云信 IM

[App page](https://appshunter.io/ios/app/im/id6805091231)

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

**In-app purchases:** none


## Frequently asked questions

### Is 蜗牛云讯 free?

蜗牛云讯 is free to download, with no in-app purchases.

### Is 大唐云信 IM free?

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

### Do 蜗牛云讯 or 大唐云信 IM have ads?

Neither 蜗牛云讯 nor 大唐云信 IM shows ads.

### Which is updated more often, 蜗牛云讯 or 大唐云信 IM?

蜗牛云讯 ships an update every 6 weeks, and 大唐云信 IM daily. Most recently, 蜗牛云讯 was updated on October 30, 2026 and 大唐云信 IM on November 2, 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.*