Yes, both MentionMe and CloudSocial offer a Free Trial.
MentionMe is designed for Freelancers, Medium Business and Small Business.
CloudSocial is designed for Large Enterprises, Medium Business and Small Business.
Pricing for MentionMe Starts at $22.30/Month whereas for CloudSocial Starts at $13/Month when Billed Yearly.
Some top alternatives to MentionMe includes Social Opinion, Zoho Social, Zoomph, CloudSocial, Astute Social, Lately, Posted, Qualified, Workvivo, Blog To Social, Socital and IFTTT.
Some top alternatives to CloudSocial includes Zoho Social, Crowdfire, SocialBee, Buffer, SMhack, Hootsuite, Planable, Socialhoox, SocialMgr, Later, Broadcast, Astute Social, SocialHub, HipSocial by 500apps and SocialHuge.