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Slack offers Free Trial, but Sketch does not.
Sketch is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Sketch Starts at $9/User/Month whereas for Slack Starts at $2.67/Month.
Some top alternatives to Sketch includes Looka, Figma, Canva, CorelDraw, Xara Designer Pro, Drawtify, DesignGapp, Adobe Illustrator, Vectornator Pro and Gravit Designer.
Some top alternatives to Slack includes Microsoft Teams, Glip, Google Chat, ChatWork, Dialog, Office Chat, imBee, Takle, SPACE Channel and Teamwork Chat.