Yes, both Tweet Ninja and TweetNest offer a Free Trial.
Tweet Ninja is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
TweetNest is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Tweet Ninja Starts at $19/Month whereas for TweetNest Starts at $15.99/Month.
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 TweetNest includes FollowerSearch, BuzzSumo, Twitter Analytics, NetBase, Twitonomy, Planable, Hypegrowth, SocialBee, BTweeps, Twitter Ads, Tweelog and Tweepsmap.