Yes, both Slack and GrowthScore offer a Free Trial.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
GrowthScore is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Slack Starts at $2.67/Month whereas for GrowthScore Starts at $19/Month.
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 GrowthScore includes Zonka Feedback, FeedbackLink, SoluCX, UserSpeaks, HockeyStack Surveys, Liveform, SatisMeter, SmileBack, SentimentSnap and piHAPPINESS.