Yes, both Slack and Freedcamp offer a Free Trial.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Freedcamp is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Slack Starts at $2.67/Month whereas for Freedcamp Starts at $1.49/User/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 Freedcamp includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Trello, Wrike, TeamGantt, monday.com, Asana, Teamwork, Kanboard, Kanbanize, Trackboard, Quick Base, GoodGantt and Kanban Tool.