Yes, both productboard and airfocus offer a Free Trial.
productboard is designed for Individuals, Large Enterprises, Medium Business and Small Business.
airfocus is designed for Large Enterprises, Medium Business and Small Business.
Pricing for productboard Starts at $20/User/Month when Billed Yearly whereas for airfocus Starts at $19/Month when Billed Yearly.
Some top alternatives to productboard includes Aha!, Roadmunk, ProdPad, ProductPlan, Jira, Productroad, ProductFlare, Next Please, airfocus and IdeaPlan.
Some top alternatives to airfocus includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Aha!, Jira, productboard, Wrike, Teamwork, Focussist, Quick Base, Airtable, Focusplan and MyFocusSpace.