Yes, both Publer and RetargetKit offer a Free Trial.
Publer is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
RetargetKit is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Publer Starts at $8/Month when Billed Yearly whereas for RetargetKit Starts at $7/Month when Billed Yearly.
Some top alternatives to Publer includes Zoho Social, Crowdfire, SocialBee, Buffer, Hootsuite, Planable, SocialMgr, Later, SocialPilot, Post Planner, SocialPlanner.io, CloudSocial, SocialHub and Planly.
Some top alternatives to RetargetKit includes Bitly, RocketLink, Rebrandly, ShortSwitch, Cutt.ly, SHORBY, Short.io, Switchy, Linkjoy, MyLinks On Acalytica and Smartlnks.com.