Comparison

私信 vs Coin Chat

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

私信

Free

🌐 Social Networking

★ 5.01 ratingsView app →

Coin Chat

Coin Circle User Communication

Free

🌐 Social Networking

★ 1.01 ratingsView app →

About

私信

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

Read full description

「 SeChat 私信」，由鳳凰互聯網團隊2018年全新發佈，是一款基於端對端加密技術的IM（即時通訊）應用，是利用多種高強度加密協議和算法專為應對互聯網移動辦公的網絡威脅，保證商業，金融，高新科技等溝通數據安全而打造的，以專注為廣大企業用戶，政府機構，科研院校，行業協會等團體提供安全可靠的即時通訊服務。SeChat支持文本，表情，語音，圖片等主流IM的聊天功能，同時也為數據安全提供各種數據保護和數據清除的專業功能。「SeChat免費版」，實行永久全免費政策。同時，「SeChat企業版」会提供更加專業的企業級服務及技術支持，更可提供符合商業客戶需求的二次開發服務。SeChat企業版更可為客戶提供私有化服務器部署，無論是本地服務器還是雲端客戶的全部信息和數據由客戶內部自主管理，一站式專業服務，及時快速上線。主要功能： -團體管理 -即時通告 -團體活動 -決策投票 -即時通訊服務 -端對端加密 -好友管理 -自主建群 -定時銷毀 -遠程銷毀（開發中） -閱後即焚（開發中） -消息撤回 -消息免打擾 -公告服務 -群內互動 -商務功能：雲端任務管理系統「SeChat」所有版本均基於我們的《使用條款》及《隱私政策》的保障範圍之內。

About

Coin Chat

This app offers secure instant messaging with end-to-end encryption for text, voice, and video calls. It supports large groups, channel broadcasting, and multi-device synchronization, ensuring private and efficient communication for individuals and businesses.

Highlights

End-to-end encrypted messaging
Voice and video calls
Large group chats
Channel broadcasting
Multi-device synchronization
Application encryption

Features

Read full description

[Core Functions] • Instant messaging: text, voice, pictures, emoticons, file transfer • Audio and video calls: HD video calls, group meetings • Groups and Channels: Group Chat Management, Channel Broadcasting • Security encryption: encrypted message transmission, application lock • Multi-device usage: Supports devices such as iPhone and iPad, facilitating cross-device message viewing • Online status: friend online status, number of online group members

Screenshots

私信4 screens

Coin Chat3 screens

Verdict

The call

The clearest difference is rating: 私信 at 5.0 against Coin Chat's 1.0. 私信 also leads on in-app purchases (none vs 21) and ads (none vs shown). Coin Chat's advantage is update cadence (weekly vs every 3 weeks). On price, ratings volume and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Coin Chat sells 21 one-off in-app purchases. 私信 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

私信 holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of 私信's written reviews are positive against 71% of Coin Chat's.

UpkeepUpdate frequency

私信 ships an update every 3 weeks, Coin Chat weekly. The most recent releases landed on September 9, 2026 and September 23, 2026 respectively.

Scorecard7 real differences · 3 level

私信 versus Coin Chat: the parameters behind the verdict, then further details
Parameter	私信	Coin Chat
Price	Free	Free
Rating	5.0 (1 ratings) — better	1.0 (1 ratings)
Positive reviews	100.0% of reviews — better	71.4% of reviews
Number of ratings	1	1
Update frequency	Every 3 weeks	Weekly — better
Ads	No — better	Yes
In-app purchases	No — better	Yes
Monetization	Free — better	Free with in-app purchases
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod, Mac — better
Requires iOS	13.0 — better	15.2
Further details — not scored
Size	17 MB	162 MB
Age rating	4+	17+
Developer	香港鳳凰互聯網科技有限公司	Sichuan Shijin Technology Co., Ltd.