Kayak
Yes, both Quick Base and ProductPlan offer a Free Trial.
Quick Base is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
ProductPlan is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Quick Base Starts at $35/user/month when yearly whereas for ProductPlan Starts at $39/User/Month when Billed Yearly.
Some top alternatives to Quick Base includes Smartsheet, Internal, Caspio, Microsoft Power Apps, Flowfactory, Undaku, OptimumHQ, CitizenDeveloper and The m-Power Development Platform.
Some top alternatives to ProductPlan includes Aha!, Roadmunk, ProdPad, Jira, productboard, Productroad, ProductFlare, Next Please, IdeaPlan and LaunchNotes.