Mastery is the subscription based Ims software. You can create any number of classes and students can get access to all of them by purchasing a subscription.
Info:
https://codecanyon.net/item/mastery-lms-course-subscription-system/33459764
Download:
https://mega.nz/file/Yg0h2aJT#CewUDvUn8Ibe-Dx78MRVtGnTb9SxFTYjOEir0t2pkGU
https://www50.zippyshare.com/v/u7oFG293/file.html
https://mir.cr/1OI4HQZ8