Is there a way I can charge a subscription for when the user wants to sign up?
Unfortunately, the recurring billing feature is not available in this version.
But you can try workarounds by using plugins Memberships or Paid Listings, it all depends on which subscriptions you need to charge for.
Memberships - charge users for viewing listings, and Paid Listings - charge users for adding and featuring listings.
Understood, thanks a lot. I appreciate the service