Yes, both Slack and SurveySensum offer a Free Trial.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
SurveySensum is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Slack Starts at $2.67/Month whereas for SurveySensum Starts at $49/Month when Billed Yearly.
Some top alternatives to Slack includes Microsoft Teams, Glip, Google Chat, ChatWork, Dialog, Office Chat, imBee, Takle, SPACE Channel and Teamwork Chat.
Some top alternatives to SurveySensum includes SurveyMonkey, QuestionPro, Survio, SurveySparrow, Engageform, Couchsurvey, Alchemer, Cognito Forms, SurveyMonkey Engage, Honestly Employee Engagement and Curious Karen.