# 私信 vs Coffee Private Messenger

The clearest difference is in-app purchases: 私信 at none against Coffee Private Messenger's 1. 私信 also leads on update cadence (every 3 weeks vs every 7 months) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Coffee Private Messenger sells 1 in-app purchase, starting at $6.99 per 7 days. 私信 asks for nothing beyond the download.

私信 ships an update every 3 weeks, Coffee Private Messenger every 7 months. The most recent releases landed on September 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 私信 | Coffee Private Messenger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sechat/id1378942732/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Free | — |
| Size | 17 MB | 42 MB |
| Requires iOS | **13.0** | 15.1 |
| 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) | [Kuan Hua Luo](https://appshunter.io/developer/1612573732) |

## 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


### Coffee Private Messenger

[App page](https://appshunter.io/ios/app/coffee-private-messenger/id6502623851)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $6.99 | per 7 days |


## Frequently asked questions

### Is 私信 free?

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

### Is Coffee Private Messenger free?

Coffee Private Messenger is free to download, with in-app purchases available.

### Do 私信 or Coffee Private Messenger have ads?

Neither 私信 nor Coffee Private Messenger shows ads.

### Which is updated more often, 私信 or Coffee Private Messenger?

私信 ships an update every 3 weeks, and Coffee Private Messenger every 7 months. Most recently, 私信 was updated on September 26, 2026 and Coffee Private Messenger on October 16, 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.*