Yes, both Tableau and Visualr offer a Free Trial.
Tableau is designed for Large Enterprises, Medium Business and Small Business.
Visualr is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Tableau Starts at $12/User/Month whereas for Visualr Starts at $1,999 when Billed Monthly.
Some top alternatives to Tableau includes Qlik Sense, Entrinsik Informer, Looker, Microsoft Power BI, Dundas BI, QlikView, SAS Business Intelligence, SAP BusinessObjects BI, Microsoft Power BI Desktop and dataSights.
Some top alternatives to Visualr includes Entrinsik Informer, Sisense, Microsoft Power BI, Dundas BI, SAS Business Intelligence, Panintelligence, WovVBI, ibi Analytics Platform, Easy Insight and dataSights.