GreyMetrics offers Free Trial, but People.ai does not.
GreyMetrics is designed for Large Enterprises, Medium Business and Small Business.
People.ai is designed for and Small Business.
The starting price of GreyMetrics begins at $49, while pricing details for People.ai are unavailable.
Some top alternatives to GreyMetrics includes LiveReport.io, AgencyAnalytics, Reportz, JustControl.it, Vidooly, iDashboards, DashThis, Power My Analytics, Megalytic and SharpDash.
Some top alternatives to People.ai includes SalesIntel, Roivenue, Intricately, Revalyze, Gong, Revenue.AI, Clari, Infer, now ai and SalesDirector.ai.