Yes, both Tableau and Dataddo offer a Free Trial.
Tableau is designed for Large Enterprises, Medium Business and Small Business.
Dataddo is designed for Medium Business and Small Business.
Pricing for Tableau Starts at $12/User/Month whereas for Dataddo Starts at $60/Month.
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 Dataddo includes Xtract.io, Fivetran, Xplenty, Hevo, Airbyte, Telmai, Optimus Mine, Datos Intelligence and Supermetrics.