3. Assist in applying for relevant tripartite interfaces. Basic function description and introduction: This is an im instant chat communication system modeled after wechat. Every detail has been carefully considered, and all necessary functions are available. The APP end includes both Android and Apple versions, as well as PC and Web versions. The management end features a powerful PC backend management system. It supports a complete set of IM functions including text, emojis, pictures, voice, audio and video, one-on-one chat, group chat, exploration, Moments, red envelopes, and transfer. 2. One-on-one Chat: Quickly achieve private messaging and one-on-one chat, featuring various communication capabilities such as pictures, voice, dynamic emojis, short videos, red envelopes, and calls. The message history record supports roaming. 3. Group Chat: Quickly achieve group chat (with no restrictions on group members), flexible group member and permission management such as single-person silencing, full-member silencing, group red envelopes, setting administrators, group transfer, and kicking out group members. Message history records support roaming large groups and can be further improved. The group function is powerful. 4. Message Destruction: Group owners and administrators can delete any messages within the group without any prompt. Support for self-destructing after reading 5. Multi-terminal devices: Allows user accounts to log in simultaneously on multiple platforms and devices. Including mobile APP and WEB pages. Xi. Technical Architecture Client Side: Android, Apple, WEB, WindowsPC Side Data Storage: MySql + Redis + Elasticsearch + Zookeeper Server Side Operating Environment Linux Centos 7 and above 64-bit (8-core 4G) server development architecture: Java+WebSocket+Netty Android development language: Kotlin+Java Apple development language: Swift Web development architecture Vue+Html+JS+TS WindowsPC development language: C# [Purchase Service Agreement] The use of this software system product is limited to testing, experimentation, research and learning purposes only. It must not be used for commercial purposes or illegal operations. Purchasing users are strictly prohibited from using this product for any behavior that violates the current laws of China. Otherwise, please stop purchasing. If you insist on purchasing and using, all legal responsibilities and consequences shall be borne by the purchaser and user, and have nothing to do with our store. Moreover, our store reserves the right to suspend all related services. If a user engages in any illegal or infringing activities through this service, the user shall bear all responsibilities on their own. Therefore, if any loss is caused to this store or any third party, the user shall be fully responsible for compensation. This is to declare: The source code sold by our store, please do not use it for illegal purposes. The store shall not bear any legal or joint liability for any legal disputes or criminal cases arising therefrom. By placing an order, you are deemed to have agreed to this service agreement. The time of placing the order will be the effective time!!