Yes, both TweetNest and Super Send offer a Free Trial.
TweetNest is designed for Large Enterprises, Medium Business and Small Business.
Super Send is designed for Large Enterprises, Medium Business and Small Business.
Pricing for TweetNest Starts at $15.99/Month whereas for Super Send Starts at $8.33/Month when Billed Yearly.
Some top alternatives to TweetNest includes FollowerSearch, BuzzSumo, Twitter Analytics, NetBase, Twitonomy, Planable, Hypegrowth, SocialBee, BTweeps, Twitter Ads, Tweelog and Tweepsmap.
Some top alternatives to Super Send includes Twitter Analytics, NetBase, SocialMailer, Planable, SocialBu, SocialBee, Outreachly, SalesRobot, LiProspect, SocialMate and Sendzilla.