We’ve pre-installed three form tools. Which one(s) you use depends on your individual needs.
Installed and activated in all FLOW themes and sites via HubSpot’s HubSpot All-In-One Marketing – Forms, Popups, Live Chat plugin. And extended by KAYAK’s K-HubSpot Connector tool to activate drop-downs on the included Landing Pages template.
Mailchimp for WP
Use this for complex forms and automations. KAYAK’s Developer license and lots of add-ons are pre-installed, so feel free to knock your socks off. Check out their documentation.