Yes, both Quick Base and Appenate offer a Free Trial.
Quick Base is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Appenate is designed for Large Enterprises and Medium Business.
Pricing for Quick Base Starts at $35/user/month when yearly whereas for Appenate Starts at $9.90/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 Appenate includes Quick Base, Nwicode, NoCodeZ, Zeroqode Lab, Appy Pie, Zeroqode, 2OS App Builder, DrapCode, Codeless, Code2 and NoCodeAPI.