Yes, both involve.me and WPForms offer a Free Trial.
involve.me is designed for Large Enterprises, Medium Business and Small Business.
WPForms is designed for Medium Business and Small Business.
Pricing for involve.me Starts at $19/Month when Billed Yearly whereas for WPForms Starts at $39.50/Year.
Some top alternatives to involve.me includes QuestionPro, Engageform, Informizely, Cognito Forms, Formsite, Typeform, Jotform, Microsoft Forms, Serviceform, EmbedForms, Formee and Mopinion.
Some top alternatives to WPForms includes Formidable Forms, Cognito Forms, Formsite, Typeform, Google Forms, Gravity Forms, MightyForms, weForms, Ninja Forms, Forms, Forms.io by 500apps and FormLink.