Yes, both ContentStudio and SocialBu offer a Free Trial.
ContentStudio 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 ContentStudio Starts at $39/Month when Billed Yearly whereas for SocialBu Starts at $6.70/Month when Billed Yearly.
Some top alternatives to ContentStudio includes Crowdfire, SocialBee, Hootsuite, SMBee, SocialBu, SocialWeaver, Broadcast, CloudSocial, SocialHub, Posted and HipSocial by 500apps.
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.