VPS only gets you a server. If you were to install apps (gitlab or wordpress or a wiki) on your server, you need to take care of keeping the server updated, the apps updated, backing up the apps, configuring dns, installing certs. etc. In addition, each of the apps need authentication as well.

This is the pain we intend to solve - you can install apps from our App Store. We take care of backups, updates, dns, certs etc. You can install apps using the same set of credentials / single Sign On. You can read more at https://cloudron.io/features.html.

Think of this as a 'smart server', a server intended to be used by anyone without deep technical knowledge (or doesn't want to put in the effort of self-hosting).

There's also a video on the landing page, please check it out.