Yes, both Zoho CRM and Callback24 offer a Free Trial.
Zoho CRM is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Callback24 is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zoho CRM Starts at $9/user/month when yearly whereas for Callback24 Starts at $49/Month when Billed Yearly.
Some top alternatives to Zoho CRM includes Thryv, Salesforce Sales Cloud, monday sales CRM by monday.com, Pipedrive, Vendasta, Zoho One, Hubspot Marketing Hub, Freshsales, Salesforce, HubSpot CRM, Microsoft Dynamics 365 for Sales, LeadSquared CRM, SalesCRM, SimpleCRM and Zoho CRM Plus.
Some top alternatives to Callback24 includes ResponseTap, Calltracks, CallView 360, calltrak, TeleCapture, Call Tracker, Tracking Sales Calls, Calls to Clients, LiveCall and Callback Tracker.