# 云信 vs 量子密信APP

The clearest difference is rating: 云信 at 2.3 against 量子密信APP's 1.0. 云信 also leads on update cadence (every 11 days vs monthly). 量子密信APP's advantage is ads (none vs shown) and review sentiment (12% vs 0%). On price, 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.

云信 holds the better App Store score, 2.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 12 respectively. Written reviews complicate that: 0% of 云信's written reviews are positive against 12% of 量子密信APP's, so the app with the better star average is not the one people write more warmly about.

云信 ships an update every 11 days, 量子密信APP monthly. The most recent releases landed on September 15, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 云信 | 量子密信APP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/id1523027595/reviews)** | [1.0 (12 ratings)](https://appshunter.io/ios/app/app/id1664316507/reviews) |
| Number of ratings | 3 | **12** |
| Positive reviews | 0.0% of reviews | **11.8% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Monthly |
| Monetization | — | Free |
| Size | 68 MB | 297 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [河南信天下网络科技有限公司](https://appshunter.io/developer/1523027597) | [中电信量子科技有限公司](https://appshunter.io/developer/1664316509) |

## What reviewers say

### 云信

[App page](https://appshunter.io/ios/app/id1523027595)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 云信 free?

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

### Is 量子密信APP free?

量子密信APP is free to download, with no in-app purchases.

### Which has better reviews, 云信 or 量子密信APP?

云信 is rated higher. 云信 averages 2.3 out of 5 from 3 ratings, while 量子密信APP averages 1.0 from 12 ratings.

### Do 云信 or 量子密信APP have ads?

云信 shows ads; 量子密信APP does not.

### Which is updated more often, 云信 or 量子密信APP?

云信 ships an update every 11 days, and 量子密信APP monthly. Most recently, 云信 was updated on September 15, 2026 and 量子密信APP on September 22, 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.*