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