@Jhonmicky Co-founder of Cloudron here.
ServerPilot/Runcloud - These are platforms to help you run PHP code (i.e code that you developed). Also, from what I can tell, the control panels of both these products are hosted by them (i.e it's not on your server). This is a plus or minus depending on your requirements.
Sandstorm tries to bring a google apps style document model to apps. It's not intended for hosting public facing apps (like this forum or our public chat). We were very excited when it launched but unfortunately it is not actively developed anymore https://sandstorm.io/news/2017-03-13-joining-cloudflare.
CPanel/Plesk - I added this to the mix but this panel focus heavily on WordPress and shared web hosting features like re-seller management.
Cloudron - Our focus is to make it easy to run SaaS alternatives on your server. If you need a Discourse forum (ruby) or Ghost blog (nodejs) or mattermost chat (Go), redash analytics (python), nextcloud File sharing (PHP) you can run it easily now using Cloudron. Our focus is not PHP, so we will probably never be able to provide options like choosing a PHP version (well, we can but it's not our focus).
There is some overlap in all the products but it's only outwardly since they all solve different use cases.
