# 量子密信APP vs 43Chat

The clearest difference is update cadence: 43Chat at every 2 weeks against 量子密信APP's monthly. 量子密信APP's advantage is iOS requirement (13.0 vs 15.1). On price, ads, 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.

量子密信APP ships an update monthly, 43Chat every 2 weeks. Both last shipped on September 26, 2026.

## The numbers

| Metric | 量子密信APP | 43Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (12 ratings)](https://appshunter.io/ios/app/app/id1664316507/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 11.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 297 MB | 59 MB |
| Requires iOS | **13.0** | 15.1 |
| 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) | [北京对牛弹琴科技有限公司](https://appshunter.io/developer/1786968233) |

## 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


### 43Chat

[App page](https://appshunter.io/ios/app/43chat/id6757914904)

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

**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 43Chat free?

43Chat is free to download, with no in-app purchases.

### Do 量子密信APP or 43Chat have ads?

Neither 量子密信APP nor 43Chat shows ads.

### Which is updated more often, 量子密信APP or 43Chat?

量子密信APP ships an update monthly, and 43Chat every 2 weeks. Most recently, 量子密信APP was updated on September 26, 2026 and 43Chat on September 26, 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.*