Yes, both Interface 365 and Salesforce Sales Cloud offer a Free Trial.
Interface 365 is designed for Large Enterprises, Medium Business and Small Business.
Salesforce Sales Cloud is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Interface 365 Starts at $19/User/Month whereas for Salesforce Sales Cloud Starts at $25/user/month when yearly.
Some top alternatives to Interface 365 includes Salesforce Sales Cloud, Pipedrive, Freshsales, Salesflare, Close, Vendasta, Keap, ClickUp, Zoho CRM, Salesforce, Thryv, SalesCRM, SimpleCRM, CRM.me, Sage CRM, Easy Simple CRM, webCRM, Cool Life CRM, CRM.io by 500apps and Miss CRM.
Some top alternatives to Salesforce Sales Cloud includes Pipedrive, Freshsales, Salesflare, Close, Vendasta, Keap, ClickUp, Zoho CRM, Salesforce, Salesboom, Thryv, GoCRM, SalesCRM, SimpleCRM, CloudCC CRM, Snapforce CRM and CRM.io by 500apps.