Productroad offers Free Trial, but Zepel does not.
Zepel is designed for Medium Business and Small Business.
Productroad is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zepel Starts at $5/User/Month when Billed Yearly whereas for Productroad Starts at $38/Month.
Some top alternatives to Zepel includes ProdPad, ProductPlan, Jira, productboard, Productroad, Next Please, Trello, Asana, Teamwork and Height.
Some top alternatives to Productroad includes Aha!, Jira, productboard, Backlogs, Next Please, I'm Productive, VisionFlow, Primary, Height and IdeaPlan.