Nextcloud is a suite of client-server software for creating and using file hosting services. Nextcloud application functionally is similar to Dropbox. Unlike Dropbox, Nextcloud does not offer off-premises file storage hosting. Nextcloud is free and open-source, which means that anyone is allowed to install and operate it on their own private server devices.
The SIC is hosting a nextcloud instance for members of the SIC.
You can find the installation at the following URL:
Also, you can download the nextcloud desktop clients for diverse operating systems at:
Mobile clients can be found at google playstore and Apple AppStore.