Neither BuilderX nor GraphJS offers a free trial.
BuilderX is designed for Freelancers, Medium Business and Small Business.
GraphJS is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for BuilderX Starts at $15/User/Month whereas for GraphJS Starts at $8/Month.
Some top alternatives to BuilderX includes Looka, Supernova Studio, Sketch, Snappa, DesignGapp, Native, Designmaker, Nebo, Bannersnack, GraphJS and Airbeam.
Some top alternatives to GraphJS includes Posted, Sites, Super, NinjaSites by 500apps, Qualified, Workvivo, WebTool, Blog To Social, SaaS Forge, IFTTT, Sourcery and SaaSBox.