Yes, both Super Send and SocialBu offer a Free Trial.
Super Send is designed for Large Enterprises, Medium Business and Small Business.
SocialBu is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Super Send Starts at $8.33/Month when Billed Yearly whereas for SocialBu Starts at $6.70/Month when Billed Yearly.
Some top alternatives to Super Send includes Twitter Analytics, NetBase, SocialMailer, Planable, SocialBu, SocialBee, Outreachly, SalesRobot, LiProspect, SocialMate and Sendzilla.
Some top alternatives to SocialBu includes Crowdfire, SocialBee, Zoho Social, Planable, SocialMgr, Later, SocialPilot, MavSocial, Broadcast, Ultimate SMM, Social Mako, CloudSocial, SocialHub, SocialGest and Send Social Media.
