There are times, though rarely, when a plugin might have a limitation, usually related to accessing templates, demo content, or additional services that require direct API access or a monthly subscription on the developer’s website.
 
Unfortunately, unless you purchase directly from the developer, any plugin that requires direct API access to the developer’s server to download templates, demo content or other assets, will be unavailable. Any additional services (such as offsite asset optimization, CDN services, cloud storage, etc.) that require API access to the developer’s server will also be unavailable.
 
As for the plugin itself, it will be completely functional, with the exception of templates, demo content and these additional services.
 
A majority of plugins do not impose API restrictions and we try to provide a notice for the ones that do. Unfortunately, we do not have the manpower to physically test every single plugin, so your help is definitely welcome in finding unknown limitations.
 
When a limitation is brought to light, we do everything we can to develop a workaround. Sometimes it’s possible, sometimes it’s not. We then add a disclaimer to the plugin in question, noting the issue.

 
CURRENTLY KNOWN PLUGIN LIMITATIONS