Premium membership gives you access to all of the resources available to my online ToK Mastery, Economics Mastery and Business Mastery students as well as a bunch of other helpful resources.
I will give you all the extra tools you need to succeed in IB and beyond. IBMastery is about giving you the advantages students in the very best private schools have and the premium membership does this best.
Premium members get access to all student-resources on the site. This is great because you won't have to look to see when new things are released. They will be added to your members area immediately.
It's also nice because you'll automatically get access to personal coaching every month.