Template filters allow users to narrow down their template search to only those template subscriptions which are checked.
Pro users have the option of Unlimited template subscriptions meaning they may have an infinite number of templates to search through. Filtering allows faster and more accurate results.
Rehab Guru Pro
Filtering options are limited for Free users because the sharing feature is not enabled for free accounts.
Free users have access to Rehab Guru and Saved filters only. As a pro user you have the option of having an unlimited number of Template Subscriptions making the ability to filter essential.