Two of these three panels you can install on your own server. The third you cannot — hPanel exists only inside Hostinger, and that single fact decides more than any feature list. We compare cPanel, hPanel and ispmanager on what actually matters when you own the box: portability between providers, licence costs that grow with every account, web stack and PHP control, backups and access rights. Plus a full feature table and an honest look at what breaks when you migrate from one panel to another.