Yes, both FollowerSearch and Iconosquare offer a Free Trial.
FollowerSearch is designed for Large Enterprises, Medium Business and Small Business.
Iconosquare is designed for Individuals, Freelancers, Medium Business and Small Business.
Pricing for FollowerSearch Starts at $14.50/Month when Billed Yearly whereas for Iconosquare Starts at $49/Month when Billed Yearly.
Some top alternatives to FollowerSearch includes BuzzSumo, Twitter Analytics, NetBase, Followerwonk, Twitonomy, Tweet Archivist, SocialTracker, Planable, SocialStats, SocialBee, Tweetastic and Tweepsmap.
Some top alternatives to Iconosquare includes Social Opinion, SMhack, Sprout Social, Planable, SocialStats, Smm Dark, SumoGram, InoSocial, SocialBee, SocialGest, HipSocial by 500apps and Sharemyinsights.