Yes, both SurveyMonkey and Mentimeter offer a Free Trial.
SurveyMonkey is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Mentimeter is designed for Large Enterprises, Medium Business and Small Business.
Pricing for SurveyMonkey Starts at $25/User/Month whereas for Mentimeter Starts at $9.99/User/Month when Billed Yearly.
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 Mentimeter includes Glisser, CLiKAPAD, Zeetings, SlideLizard, Zoho Show, Slides, Vevox, Slido, Microsoft PowerPoint and AhaSlides.