Yes, both Productroad and Follab offer a Free Trial.
Productroad is designed for Large Enterprises, Medium Business and Small Business.
Follab is designed for Medium Business and Small Business.
Pricing for Productroad Starts at $38/Month whereas for Follab Starts at $7/Month.
Some top alternatives to Productroad includes Aha!, Jira, productboard, Backlogs, Next Please, I'm Productive, VisionFlow, Primary, Height and IdeaPlan.
Some top alternatives to Follab includes User Insights, Team Insights, Qualified, GetFeedy, Workvivo, Frill, Reveall, Tagai, Nolt, IFTTT, Prodsight and Intact.