Yes, both SurveyMonkey and Ninja Forms offer a Free Trial.
SurveyMonkey is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Ninja Forms is designed for Large Enterprises, Medium Business and Small Business.
Pricing for SurveyMonkey Starts at $25/User/Month whereas for Ninja Forms Starts at $49/Year.
Some top alternatives to SurveyMonkey includes Checkbox Survey, SmartSurvey, QuestionPro, SurveySparrow, Qualtrics Core XM, Alchemer, Key Survey Software, SurveyExpression, PopSurvey, Cognito Forms, Typeform and SurveyPro.
Some top alternatives to Ninja Forms includes Formidable Forms, Cognito Forms, Formsite, Typeform, Gravity Forms, Jotform, 123FormBuilder, weForms, WPForms, Forms, Forms.io by 500apps and FormLink.