Yes, both InstaContact and Calls to Clients offer a Free Trial.
InstaContact is designed for Large Enterprises, Medium Business and Small Business.
Calls to Clients is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for InstaContact Starts at $49/Month whereas for Calls to Clients Starts at $58.33/Month when Billed Yearly.
Some top alternatives to InstaContact includes Thryv, Salesforce Sales Cloud, monday sales CRM by monday.com, Pipedrive, Zoho CRM, Vendasta, ClickUp, Salesforce, Keap, Method CRM, CRM.io by 500apps, Callback24, Click2Contact, LiveCall, LimeCall, Callback Tracker and Calldrive.
Some top alternatives to Calls to Clients includes Retreaver, AvidTrak, Calltracks, CallView 360, Outleads, calltrak, TeleCapture, Call Tracking Pro, Call Tracker and TrackDrive.