Yes, both Alchemer and WPForms offer a Free Trial.
Alchemer is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
WPForms is designed for Medium Business and Small Business.
Pricing for Alchemer Starts at $49/User/Month whereas for WPForms Starts at $39.50/Year.
Some top alternatives to Alchemer includes Feedier, QuestionPro, SurveySparrow, Enalyzer, Couchsurvey, SurveyRock, easyfeedback, Cognito Forms, Typeform, SurveyMonkey Enterprise and Alium.
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.
