Yes, both BuildStar and Contractor's Office offer a Free Trial.
BuildStar is designed for Large Enterprises, Medium Business and Small Business.
Contractor's Office is designed for Large Enterprises, Medium Business and Small Business.
Pricing for BuildStar Starts at $29.95/Month whereas for Contractor's Office Starts at $111/Month.
Some top alternatives to BuildStar includes Procore, UDA ConstructionOnline, Contractor's Office, Contractor's Cloud, Autodesk BIM 360, CoConstruct, BuildBook, Premier Construction Software and I-Cost.
Some top alternatives to Contractor's Office includes Procore, UDA ConstructionOnline, CMiC, PASconcept, Archdesk, Contractor's Cloud, Tactive, Premier Construction Software and Smart Contractor.