Neither BuilderX nor Sketch offers a free trial.
BuilderX is designed for Freelancers, Medium Business and Small Business.
Sketch is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for BuilderX Starts at $15/User/Month whereas for Sketch Starts at $9/User/Month.
Some top alternatives to BuilderX includes Looka, Supernova Studio, Sketch, Snappa, DesignGapp, Native, Designmaker, Nebo, Bannersnack, GraphJS and Airbeam.
Some top alternatives to Sketch includes Looka, Figma, Canva, CorelDraw, Xara Designer Pro, Drawtify, DesignGapp, Adobe Illustrator, Vectornator Pro and Gravit Designer.