Slack offers Free Trial, but Custify does not.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Custify is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Slack Starts at $2.67/Month whereas for Custify Starts at $999.
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 Custify includes Parlor, ClientSuccess, ProsperStack, Salesmachine, Catalyst, Vitally, Freshdesk Customer Success, Churn360 and Freshdesk Customer Success (Formely Freshsuccess).
