Yes, both Slack and Pendo offer a Free Trial.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pendo is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Slack begins at $2.67/Month, while pricing details for Pendo 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 Pendo includes Gainsight PX, Mixpanel, Amplitude, Segment, Heap, Amplitude Analytics, Pushlytics, Trackingplan, Adobe Analytics and fullstats.