Yes, both productboard and Changelogfy offer a Free Trial.
productboard is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Changelogfy is designed for Large Enterprises, Medium Business and Small Business.
Pricing for productboard Starts at $20/User/Month when Billed Yearly whereas for Changelogfy Starts at $9/Month.
Some top alternatives to productboard includes Aha!, Roadmunk, ProdPad, ProductPlan, Jira, Productroad, ProductFlare, Next Please, airfocus and IdeaPlan.
Some top alternatives to Changelogfy includes Jira, Productroad, Next Please, Height, Noticeable, LaunchNotes, Onset, ReleaseNotes, Releasebox.io and Released.