Crait vs 私信
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Crait
This app offers a secure platform for workgroups to communicate and collaborate. It features end-to-end encryption, self-destructing messages, and secure file sharing. Protect your business's digital assets with enhanced communication security.
- End-to-end encrypted communication
- Self-destructing messages
- Secure one-on-one and group calls
- Large group chat support (up to 1000)
- Secure file sharing
- Secure email for users
Read full descriptionHide full description
What is Crait? Crait is where secure communication and collaboration happens. It is a secure messaging tool designed to make working life easier and more productive for work-groups. Why Crait? The simple answer is: Businesses need to protect their digital assets. Businesses are targets and will be targets of cyber hacking because they have information valuable to would-be criminals. No sector of corporate America is excluded from the threat of cyber hacking. This is why at Crait, we believe that business communication deserves a security upgrade. What Crait provides - Secure one-on-one or group calls and can support chats with up to 1000 people. - Messages that self-destruct after the messages are read. - End-to-end encryption between the sender’s device and the recipient such that the encryption key never leaves the device; no party in the middle. - Secure chat, voice, as well as file-sharing capabilities to work-groups. - Secure email for Crait-to-Crait users. Pro edition service - Length of subscription: one month - Price: $2.99 per month - Payment: Payment will be charged to iTunes Account at confirmation of purchase - Turned off: Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Auto-renewal: Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Account management: Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - Privacy policy: https://www.craitapp.com/useragreement.php - Payment terms of use: https://www.craitapp.com/permission/index.html#/agreement - Auto-renewal terms of use: https://www.craitapp.com/permission/index.html#/renewagreement
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.
- 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 descriptionHide 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。
Screenshots
Verdict
The clearest difference is in-app purchases: 私信 at none against Crait's 1. 私信 also leads on rating (5.0 vs 4.7) and review sentiment (100% vs 81%). Crait's advantage is ratings volume (94 vs 1). On price, ads, device support and iOS requirement 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
Both are free to download. Crait sells 1 in-app purchase, starting at $2.99 per month. 私信 asks for nothing beyond the download.
私信 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Crait has 94 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 81% of Crait's written reviews are positive against 100% of 私信's.
Crait ships an update every 2 months, 私信 every 3 weeks. The most recent releases landed on September 29, 2026 and September 26, 2026 respectively.
| Parameter | Crait | 私信 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (94 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 81.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 94 — better | 1 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12 — better | 13.0 |
| Further details — not scored | ||
| Size | 58 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Crait Technology Inc. | 香港鳳凰互聯網科技有限公司 |
Customer experience
Crait
私信
In-app purchases
Crait
- Automatically Renew$2.991 Month
私信
No in-app purchases








