Which Plan to send 50 Invites per Gallery?

Hi there,
Could anyone please let me know which plan lets you share folders with more than 5 people?
I just signed up for the free trial and when I try to share my galleries or folders it says "5 people remaining", however I've seen in the help documentation it says 50 people remaining.
On the plan details page, it doesn't specify anything more than "Extensive privacy and security controls" so I'm not sure which plan I will need to access this feature.

Thanks for your help
Danielle