Yes, both Slack and Process Street offer a Free Trial.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Process Street is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Slack begins at $2.67/Month, while pricing details for Process Street are unavailable.
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 Process Street includes NinjaOne (NinjaRMM), GoodFlow, Asana, WorkflowMax, ProWorkflow, Orbisoft Task Manager, ClickUp, KiSSFLOW, ProcessMaker, ZapUp by 500apps and Flow.