# ZenChatIM vs 泰天密信

The clearest difference is review sentiment: ZenChatIM at 66% against 泰天密信's 0%. ZenChatIM also leads on rating (4.7 vs 1.3) and ratings volume (225 vs 4). 泰天密信's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, 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.

ZenChatIM holds the better App Store score, 4.7 against 1.3. That said, the two scores are not equally well evidenced: ZenChatIM has 225 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 66% of ZenChatIM's written reviews are positive against 0% of 泰天密信's.

ZenChatIM ships an update monthly, 泰天密信 every 6 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ZenChatIM | 泰天密信 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (225 ratings)](https://appshunter.io/ios/app/zenchatim/id6476132820/reviews)** | [1.3 (4 ratings)](https://appshunter.io/ios/app/id6762287665/reviews) |
| Number of ratings | **225** | 4 |
| Positive reviews | **66.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | — |
| Size | 76 MB | 39 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [杭州安信博源科技有限公司](https://appshunter.io/developer/1725941146) | [江苏千道街网络科技有限公司](https://appshunter.io/developer/1457694603) |

## What reviewers say

### ZenChatIM

[App page](https://appshunter.io/ios/app/zenchatim/id6476132820)

This secure messaging app offers robust end-to-end encryption to protect user communication data. It includes advanced security features like anti-screenshot and remote destruction, alongside tools for efficient information exchange and processing.

**Highlights:** End-to-end encryption, Anti-screenshot protection, Remote destruction, Top secret sessions, Global search, Group chat bulletin board

**In-app purchases:** none


### 泰天密信

[App page](https://appshunter.io/ios/app/id6762287665)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZenChatIM free?

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

### Is 泰天密信 free?

泰天密信 is free to download, with no in-app purchases.

### Which has better reviews, ZenChatIM or 泰天密信?

ZenChatIM is rated higher. ZenChatIM averages 4.7 out of 5 from 225 ratings, while 泰天密信 averages 1.3 from 4 ratings.

### Do ZenChatIM or 泰天密信 have ads?

Neither ZenChatIM nor 泰天密信 shows ads.

### Which is updated more often, ZenChatIM or 泰天密信?

ZenChatIM ships an update monthly, and 泰天密信 every 6 weeks. Most recently, ZenChatIM was updated on October 30, 2026 and 泰天密信 on October 24, 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.*