Yes, both Slack and OSlash offer a Free Trial.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
OSlash is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Slack Starts at $2.67/Month whereas for OSlash Starts at $3.16/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 OSlash includes Bitly, Rebrandly, Geniuslink, ShortURL, Short-me.me, Short.io, Switchy, Linkjoy, MyLinks On Acalytica, Recut and Shortener & Simplicity.
