Slack offers Free Trial, but Vouch does not.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Vouch is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Slack Starts at $2.67/Month whereas for Vouch Starts at $79/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 Vouch includes Plotto, Vidmat, Senja, Vuzers, Testimonial, VideoOk, VidScout, Testimonial Hunt, Vidmonials and VideoForm.