Cloud VPN is an application to bypass all blocked website. This application allows you to open those websites which have some security and not for everyone to use.
In certain schools there is some security on accessiblity on Wi-Fi which blocks the user to open certain social media website to make the students focus on their study.
However, life without social media is boring. If this security is causing problem in your school, all you need to do is install this application to bypass the security.