Yes, both Whoisvisiting and NasMetrics offer a Free Trial.
Whoisvisiting is designed for Large Enterprises, Medium Business and Small Business.
NasMetrics is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Whoisvisiting Starts at $69/Month whereas for NasMetrics Starts at $12.50/Month when Billed Yearly.
Some top alternatives to Whoisvisiting includes Leady, Leadfeeder, LeadFuze, Lead Forensics, LeadsBridge, Leadforms, Leadworx, Leadinfo, LeadMagic, Leadenhancer and Lead Revealer.
Some top alternatives to NasMetrics includes SimilarWeb Pro, Google Analytics, UserSurge, Socialoop, WebForce Analytics, 66Analytics, AppMetrix, Steel Analytics and Aqvil Analytics.