The Login One plug-in only deals with user accounts that are created and maintained by the Joomla! core. So if an extension creates a separate user database, i.e. separate from or additional to Joomla!, this will not work with the plug-in.
Just try it with the free plug-in edition. If this works, the Premium and Business editions will work as well.

Hello,

If I use "login one" with any subscriptions extension (I want to limit access to K2) for example "PayPlan"

Has "login one" has a feature to check expired subscriptions and forced log out and reload page ?

I think it's should like "cron job" script to check

Thank you
Umpol

The Login One plug-in manages the Joomla! log-in process and acts independently from other non-login third party extensions. I suggest that you Google for a video extension and just try.

Hello,

Are there any Video extensions with I can use benefit of "login one" I want to offer "Pay Per View" for my site

Thank you
Umpol