You register and get access to 2gb of free space (you can easily earn more for free). You can install a desktop application on the computers you want and the content will be available across all and it works like a normal folder. Alternatively you can use your web browser to access your contents.

They keep your files online so you can access them from any device and from any location. Sign up is free, you can buy more space later. Some time before they started a program to give up to 50Gb space for free for those who refer a friend - worth checking if it's still available.

More details about how to use it on Windows here: https://www.ultranetworks.ro/en/solutii-...

And more details about how to use it on Android here: https://www.ultranetworks.ro/en/solutii-...