Yes, both Microsoft Power BI and Alloka offer a Free Trial.
Microsoft Power BI is designed for Large Enterprises, Medium Business and Small Business.
Alloka is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Microsoft Power BI Starts at $4,995/Month whereas for Alloka Starts at $1,567.51/Month.
Some top alternatives to Microsoft Power BI includes Google Drive, Tableau, IBM Cognos Analytics, Dundas BI, SAS Business Intelligence, Clear Analytics, SAP BusinessObjects BI, ibi Analytics Platform, Narrative BI and Microsoft Power BI Desktop.
Some top alternatives to Alloka includes ResponseTap, Calltracks, CallView 360, calltrak, TeleCapture, Call Tracker, Caller Insight, Tracking Sales Calls, Trailhub and Calls to Clients.