Earger.io is a website that allows you to install multiple plugins to any platform you want, such as : wordpress,joomla, drupal, or even simple html5 templates. You need only to register an account which is completely free, and then you can choose to install any apps you want from the dashboard menu.
After registering your account you need to set your website ulr there, then you will need to paste only a simple script code to your website , or to that page where you want to install the plugin.
I’ve been using eager for awhile and I thought to share it with you, and what I like from it is that you can use it as CDN(Content Delivery Network) too, because all plugins are hosted to their server, so that won’t slow down your website speed.
They offer plugins from the following categories as is in the photo below.
Keep in mind that installing is only one time, then you can update/delete or change your apps from eager dashboard menu, everything it will be updated in real time so don’t worry about cache.