Yes, both CampaignAlyzer and Viraltag offer a Free Trial.
CampaignAlyzer is designed for Large Enterprises, Medium Business and Small Business.
Viraltag is designed for Individuals and Small Business.
Pricing for CampaignAlyzer Starts at $99/Month whereas for Viraltag Starts at $24/Month.
Some top alternatives to CampaignAlyzer includes Meta Tags, Viraltag, Google Tag Manager, TagCommander, Tag Governance, Tealium iQ, Seotagg, Tagmate, UTM Manager and Scale8.
Some top alternatives to Viraltag includes Crowdfire, SocialBee, Buffer, Zoho Social, Planable, Later, SocialPilot, Tailwind, Social Web Suite, CloudSocial, SocialHub, Lately, Vista Social and SocialHuge.