Nextcloud Hub is a productivity solution that allows for sharing and collaboration on documents, chat, audio/video call and other groupware productivity features.
Nextcloud consists of its core with functions and features provided through App. There are a variety of “App” in Nextcloud app store to extend features and capabilities of Nextcloud.
Nextcloud Files, through a combination of few Apps, is the component for enterprise class file synchronization and sharing. It offers universal file access on desktop, mobile and web. It allows sharing of files and collaborate with internal and external parties, search for files, manage and organize your files and folders through tagging and comments.
You can share one or more files and folders on your computer and synchronize them with your Nextcloud server. Place files in your local shared directories, and those files are immediately synchronized to the server and to other devices using the Nextcloud Desktop Sync Client, Android app, or iOS app.
Nextcloud Talk App provides your own private chat, audio/video conferencing through browser and mobile interfaces with integrated screen sharing.
Nextcloud Groupware provides groupware like productivity features through Contact, Calendar, Mail, and other Apps to help your teams get their work done faster and easier.
Here is a short video on Youtube on Nextcloud Hub ( https://www.youtube.com/watch?v=I8GtygCoNcY ).