Yes, both Pipedrive and Slack offer a Free Trial.
Pipedrive is designed for Large Enterprises, Medium Business and Small Business.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Pipedrive Starts at $9.90/User/Month when Billed Yearly whereas for Slack Starts at $2.67/Month.
Some top alternatives to Pipedrive includes Salesforce Sales Cloud, Thryv, Vendasta, Freshsales, Salesforce, HubSpot CRM, Onpipeline, Pipeliner CRM, SalesCRM, Salesdash CRM, Pipeline CRM, CRM.io by 500apps and Pype Intelligent CRM.
Some top alternatives to Slack includes Microsoft Teams, Glip, Google Chat, ChatWork, Dialog, Office Chat, imBee, Takle, SPACE Channel and Teamwork Chat.