4.4
Slack offers Free Trial, but Grai does not.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Grai is designed for and undefined.
Pricing for Slack Starts at $2.67/Month whereas for Grai Starts at $1,200 when Billed Monthly.
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 Grai includes traggr, Grist, Datagran, Qualified, AnalyticsVerse, DataGrail, Workvivo, Metaplane, Graviti, Datos Intelligence, Grain and IFTTT.