# 量子密信APP vs 云企密信Pro

The clearest difference is rating: 云企密信Pro at 5.0 against 量子密信APP's 1.0. 云企密信Pro also leads on update cadence (every 8 days vs monthly) and review sentiment (25% vs 12%). 量子密信APP's advantage is ratings volume (12 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

云企密信Pro holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: 量子密信APP has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 12% of 量子密信APP's written reviews are positive against 25% of 云企密信Pro's.

量子密信APP ships an update monthly, 云企密信Pro every 8 days. The most recent releases landed on September 22, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | 量子密信APP | 云企密信Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (12 ratings)](https://appshunter.io/ios/app/app/id1664316507/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pro/id6476509633/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 11.8% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | Free | Free |
| Size | 297 MB | 106 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [中电信量子科技有限公司](https://appshunter.io/developer/1664316509) | [Shenzhen Aituosi Network Technology Co., Ltd](https://appshunter.io/developer/1726932857) |

## What reviewers say

### 量子密信APP

[App page](https://appshunter.io/ios/app/app/id1664316507)

This enterprise communication and collaboration app facilitates instant messaging, contact management, and meeting coordination. It enhances internal communication and management efficiency for businesses, with built-in security features like watermarking and sensitive word filters.

**Highlights:** Instant messaging, Unit contact directory, Meeting management, Announcement and information, Enterprise-level security, Global watermarking, Sensitive word settings

**Features:** Vision Pro support

**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 量子密信APP free?

量子密信APP 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, 量子密信APP or 云企密信Pro?

云企密信Pro is rated higher. 量子密信APP averages 1.0 out of 5 from 12 ratings, while 云企密信Pro averages 5.0 from 1 ratings.

### Do 量子密信APP or 云企密信Pro have ads?

Neither 量子密信APP nor 云企密信Pro shows ads.

### Which is updated more often, 量子密信APP or 云企密信Pro?

量子密信APP ships an update monthly, and 云企密信Pro every 8 days. Most recently, 量子密信APP was updated on September 22, 2026 and 云企密信Pro on September 6, 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.*