Sync Calling vs Shiku IM

Sync Calling 是一個錫安教會會友專用通訊軟件。 當中包括相片、影片分享功能。 簡易錄音及錄音附件功能。 附設sync-file 雲端檔案運作，可以將過往曾經分享的檔案儲存。 也是教會通告及公佈平台。 更可與zion forum app 互通。 * 此軟件需要帳戶登入，軟件亦只開放給本會教友使用。

This is an original instant messaging software with stable performance and features. 1. high concurrency: the measured concurrent number is above 20W, and it supports hundreds of millions of users. 2. high availability: the server does not need to restart for half a year, automatic load balancing. 3. function: mainstream IM has all the functions, and we still have none. 4. private cloud: support for privatization and deep customization, not subject to people. 5. high security: communication protocol adopts high intensity encryption algorithm, and chat records do not leak. 6. Support appointment meeting, voice conference, video conference, shared desktop, text chat in the meeting, member management, etc The specific functions are: 1. address book, supporting friend validation or non verification, two-dimensional code, label grouping, pulling black, my colleagues, public numbers, multiple entry, my phone sending messages to my computer, etc. 2. single chat, support message receipt, burn after reading, display read, message free, top, withdraw, video chat, search chat records, etc. 3. group chat, support bulletin, @ group members, group members, group validation, group nicknames, group management, number of readers, video conferencing, etc., to support 10000 people. 4. message, support long text, pictures, recording, video, business card, location, animation, archives, red packets, screenshots and other types. 5. Privacy, exclusive ownership of features such as delivery, read, burn after reading, end-to-end encryption, private groups, private group members, etc