Yes, both Tweet Ninja and Mintrics offer a Free Trial.
Tweet Ninja is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Mintrics is designed for Individuals, Freelancers, Medium Business and Small Business.
Pricing for Tweet Ninja Starts at $19/Month whereas for Mintrics Starts at $1,290/Year.
Some top alternatives to Tweet Ninja includes Zoho Social, Crowdfire, SocialBee, Buffer, Planable, Later, SocialBu, Naytev, Ultimate SMM, Tweetastic, Redfeets, SocialPear, BTweeps, Twitter Ads and Tweepsmap.
Some top alternatives to Mintrics includes Zoho Social, Crowdfire, SocialBee, TrueSocialMetrics, Buffer, Planable, ViralStat, SMBee, Later, Social Combiner, SocialScud, CloudSocial, SocialGest, Send Social Media and Metricscreen.