Yes, both GreyMetrics and Megalytic offer a Free Trial.
GreyMetrics is designed for Large Enterprises, Medium Business and Small Business.
Megalytic is designed for Large Enterprises, Medium Business and Small Business.
Pricing for GreyMetrics Starts at $49 whereas for Megalytic Starts at $39.99/Month.
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 Megalytic includes Sisense, Tableau, Ideal Analytics, Statsbot, Dundas BI, SAS Business Intelligence, SAP BusinessObjects BI, Panintelligence, ibi Analytics Platform and dataSights.