Yes, both Socialradar.co and Zoho Social offer a Free Trial.
Socialradar.co is designed for Medium Business and Small Business.
Zoho Social is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Socialradar.co Starts at $6.99/Month whereas for Zoho Social Starts at $10/Month when Billed Yearly.
Some top alternatives to Socialradar.co includes Crowdfire, SocialBee, Social Opinion, Twitonomy, Mention, Buffer, Zoho Social, Hootsuite, Planable, Later, SocialBu, Commentif, CloudSocial, BrandMentions and Tweetastic.
Some top alternatives to Zoho Social includes Crowdfire, SocialBee, Buffer, Hootsuite, Sprout Social, AgoraPulse, SocialMgr, SocialPilot, MavSocial, CloudSocial, SocialHub and SendPilot.