Yes, both Chartmat and Quick Base offer a Free Trial.
Chartmat is designed for Individuals, Medium Business and Small Business.
Quick Base is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Chartmat Starts at $14/Month whereas for Quick Base Starts at $35/user/month when yearly.
Some top alternatives to Chartmat includes Quick Base, Betty Blocks, Bubble, Kintone, Appenate, Quixy, airSlate, Appy Pie, AppMaster.io and Thunkable.
Some top alternatives to Quick Base includes Smartsheet, Internal, Caspio, Microsoft Power Apps, Flowfactory, Undaku, OptimumHQ, CitizenDeveloper and The m-Power Development Platform.