# 私信 vs 云企密信Pro

私信 and 云企密信Pro both sit at 5.0 stars, but that hides the real split: 100% of 私信's written reviews are positive against 25% of 云企密信Pro's. 云企密信Pro's advantage is update cadence (every 8 days vs every 3 weeks). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for 私信 against 5.0 for 云企密信Pro. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 100% of 私信's written reviews are positive against 25% of 云企密信Pro's.

私信 ships an update every 3 weeks, 云企密信Pro every 8 days. The most recent releases landed on September 26, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 私信 | 云企密信Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sechat/id1378942732/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pro/id6476509633/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free | Free |
| Size | 17 MB | 106 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [香港鳳凰互聯網科技有限公司](https://appshunter.io/developer/1238227716) | [Shenzhen Aituosi Network Technology Co., Ltd](https://appshunter.io/developer/1726932857) |

## What reviewers say

### 私信

[App page](https://appshunter.io/ios/app/sechat/id1378942732)

A secure instant messaging app built with end-to-end encryption for businesses and organizations. It offers standard chat features along with advanced data protection and clearing functions. A free version is available, with a paid enterprise option for enhanced services.

**Highlights:** End-to-end encryption, Text, emoji, voice, and image chat, Data protection and clearing, Group management, Instant announcements, Message recall and do not disturb

**In-app purchases:** none


### 云企密信Pro

[App page](https://appshunter.io/ios/app/pro/id6476509633)

This secure messaging app prioritizes user privacy with end-to-end encryption for chats and calls. It offers features like self-destructing messages and files, and supports large group chats for up to 10,000 users.

**Highlights:** End-to-end encryption, Self-destructing messages, Scheduled file destruction, Two-way message deletion, Anti-eavesdropping technology, Large group chats (up to 10,000), Multi-language support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 私信 free?

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

### Is 云企密信Pro free?

云企密信Pro is free to download, with no in-app purchases.

### Which has better reviews, 私信 or 云企密信Pro?

私信 and 云企密信Pro are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 私信 or 云企密信Pro have ads?

Neither 私信 nor 云企密信Pro shows ads.

### Which is updated more often, 私信 or 云企密信Pro?

私信 ships an update every 3 weeks, and 云企密信Pro every 8 days. Most recently, 私信 was updated on September 26, 2026 and 云企密信Pro on October 7, 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.*