Yes, both Looker and Sisense offer a Free Trial.
Looker is designed for Large Enterprises, Medium Business and Small Business.
Sisense is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing details for both Looker and Sisense are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to Looker includes Qlik Sense, Sisense, Tableau, Microsoft Power BI, Dundas BI, QlikView, SAS Business Intelligence, Microsoft Power BI Desktop, Tableau Server and dataSights.
Some top alternatives to Sisense includes Entrinsik Informer, Tableau, Looker, Yellowfin, Microsoft Power BI, Dundas BI, QlikView, SAS Business Intelligence, SAP BusinessObjects BI and ibi Analytics Platform.