Yes, both Retreaver and INVOX offer a Free Trial.
Retreaver is designed for Individuals, Large Enterprises, Medium Business and Small Business.
INVOX is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Retreaver begins at $25/Month, while pricing details for INVOX are unavailable.
Some top alternatives to Retreaver includes ResponseTap, Ringba, Calltracks, calltrak, TeleCapture, Call Tracker, Caller Insight, Tracking Sales Calls, CallTracking and Calls to Clients.
Some top alternatives to INVOX includes ResponseTap, Retreaver, Calltracks, CallView 360, calltrak, TeleCapture, Call Tracker, Tracking Sales Calls, Track Leads and Calltouch.