Chatwork

Rocket.Chat is a fully customizable, open-source communications platform for organizations with high standards of data protection. It enables real-time conversations between colleagues, with other companies, or with your customers, regardless of how they want to connect with you. Compared to similar players in the industry, such as Slack and Microsoft Teams, Rocket.Chat offers an on-prem deployment that enables organizations to take full ownership of their data. Rocket. Chat's open-source nature makes it more flexible to meet specific company needs and more scalable to follow your organization's growth. It also holds the only true MIT open-source license. We have over 1000 developers across the world contributing to the open-source code. Every day, tens of millions of users in over 150 countries and in organizations such as Audi Business Innovation, Deutsche Bahn, The US Navy, and Credit Suisse trust Rocket.Chat to keep their communications completely private and secure.

DingTalk, an innovative teamwork App by Alibaba Group. A powerful communication and collaboration platform used by millions of enterprises and organizations. By using latest mobile and cloud technology, DingTalk provides message, voice and video communication, workflow management and office automation functions to teams and enterprises of various sizes. With a built-in enterprise address book, users can easily initiate chats or voice and video conference as well as secured group chats with members of their organization. DingTalk is a powerful all-in-one teamwork platform: [Team Space]: DingTalk provides multiple powerful tools for teamwork, including company address book based group chat, message read/unread status, team document sharing, message to task/meeting/notification conversion, etc. [Task Management]: Manage all your tasks, meetings, and events easily, and synchronize your local calendar events into a unified schedule view.