Yes, both Casetext and Smokeball offer a Free Trial.
Casetext is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Smokeball is designed for Large Enterprises, Small Business and Medium Business.
Pricing for Casetext Starts at $65/Month when Billed Yearly whereas for Smokeball Starts at $29.00per user / month when Billed Yearly.
Some top alternatives to Casetext includes CasePoint, Everlaw, Legartis, LexisNexis eCrash, AI Lawyer, LexisNexis Command Center, LexisNexis CounselLink, Lex Machina and CASE.
Some top alternatives to Smokeball includes and undefined.