Yes, both POSTOPLAN and Later offer a Free Trial.
POSTOPLAN is designed for Freelancers, Medium Business and Small Business.
Later is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for POSTOPLAN Starts at $1.58/Month when Billed Yearly whereas for Later Starts at $12.50/Month when Billed Yearly.
Some top alternatives to POSTOPLAN includes Crowdfire, SocialBee, Zoho Social, Hootsuite, Planable, SocialMgr, Later, SocialPilot, Post Planner, Broadcast, SocialPlanner.io, CloudSocial, SocialHub, Postly and Planly.
Some top alternatives to Later includes Crowdfire, SocialBee, Social Insight, Postcron, SocialMgr, SocialPilot, Sked Social, Socialdraft, InoSocial, CloudSocial, SocialHub and SocialGest.