# Catfan vs 大唐云信 IM

The clearest difference is update cadence: 大唐云信 IM at daily against Catfan's every 3 weeks. 大唐云信 IM also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Catfan ships an update every 3 weeks, 大唐云信 IM daily. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Catfan | 大唐云信 IM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/catfan/id959824325/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free | — |
| Size | 18 MB | 89 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Binary Gear LLC](https://appshunter.io/developer/959824264) | [Wantong Cross-Border Supply Chain Limited](https://appshunter.io/developer/6805091233) |

## What reviewers say

### Catfan

[App page](https://appshunter.io/ios/app/catfan/id959824325)

Discover a peaceful social network focused on simplicity and user customization. Find friends who share your hobbies with a special matching algorithm. Enjoy a pure and wonderful online space.

**Highlights:** Clear and simple interface, Easy-to-use design, Friend matching algorithm, Customizable interface, Hobby-focused community

**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 Catfan free?

Catfan 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 Catfan or 大唐云信 IM have ads?

Neither Catfan nor 大唐云信 IM shows ads.

### Which is updated more often, Catfan or 大唐云信 IM?

Catfan ships an update every 3 weeks, and 大唐云信 IM daily. Most recently, Catfan was updated on November 1, 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.*