Yes, both Amplifr and Later offer a Free Trial.
Amplifr is designed for Large Enterprises, Medium Business and Small Business.
Later is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Amplifr Starts at $24/Month when Billed Yearly whereas for Later Starts at $12.50/Month when Billed Yearly.
Some top alternatives to Amplifr includes Zoho Social, Crowdfire, SocialBee, Planable, SocialMgr, Later, Socialdraft, Broadcast, SocialPlanner.io, CloudSocial, SocialHub, Social Aider, Send Social Media, Posted and Recur Post.
Some top alternatives to Later includes Zoho Social, Crowdfire, SocialBee, Social Insight, Postcron, SocialMgr, SocialPilot, Sked Social, Socialdraft, InoSocial, CloudSocial, SocialHub and SocialGest.