Yes, both Spark Chart and Mopinion offer a Free Trial.
Spark Chart is designed for Large Enterprises, Medium Business and Small Business.
Mopinion is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Spark Chart Starts at $25/User/Month when Billed Yearly whereas for Mopinion Starts at $229/Month.
Some top alternatives to Spark Chart includes QuestionPro, EventSurvey360, SurveySparrow, GetFeedback, SurveyRock, easyfeedback, Cognito Forms, UserFace, Mopinion and Feedback Finder.
Some top alternatives to Mopinion includes SurveyMonkey, QuestionPro, SurveySparrow, easyfeedback, ngSurvey, Cognito Forms, Liveform, UserFace, Freddy Feedback, Feedbackery and Usabilla.