Yes, both Microsoft Dynamics 365 for Sales and HappyFox offer a Free Trial.
Microsoft Dynamics 365 for Sales is designed for Large Enterprises, Medium Business and Small Business.
HappyFox is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Microsoft Dynamics 365 for Sales Starts at $65/User/Month whereas for HappyFox Starts at $29/Month when Billed Yearly.
Some top alternatives to Microsoft Dynamics 365 for Sales includes Pipedrive, Freshsales, Salesflare, Close, Vendasta, Keap, ClickUp, Zoho CRM, Salesforce, Thryv, SalesCRM, SimpleCRM, Simply CRM, Client Book CRM, webCRM, Snapforce CRM, DigitalCRM.com, CRM.io by 500apps and CRMSuite.
Some top alternatives to HappyFox includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Jira Service Desk, Freshdesk, Deskero, SeamlessDesk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, CRMdesk, ReadyDesk, HESK and BoldDesk.