Yes, both Aha! and Harvestr offer a Free Trial.
Aha! is designed for Large Enterprises, Medium Business and Small Business.
Harvestr is designed for Medium Business and Small Business.
Pricing for Aha! Starts at $59/User/Month when Billed Yearly whereas for Harvestr Starts at $49/Month.
Some top alternatives to Aha! includes Roadmunk, ProductPlan, Jira, productboard, Productroad, Backlogs, ProductFlare, Next Please, Teamwork and Height.
Some top alternatives to Harvestr includes ProdPad, Jira, productboard, Productroad, ProdCamp, Backlogs, Next Please, Primary, IdeaPlan and Producter.