Yes, both Slack and Trolley Accounts Payable offer a Free Trial.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Trolley Accounts Payable is designed for and undefined.
Pricing for Slack Starts at $2.67/Month whereas for Trolley Accounts Payable Starts at $35/month when monthly.
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 Trolley Accounts Payable includes and undefined.