Yes, both ContactBook and Salesforce offer a Free Trial.
ContactBook is designed for Large Enterprises, Medium Business and Small Business.
Salesforce is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Salesforce begins at $25/User/Month, while pricing details for ContactBook are unavailable.
Some top alternatives to ContactBook includes Salesforce, CloudCC CRM, OnContact CRM, Easy Simple CRM, ContactEase, OfficeClip Contact Manager, Contacts+, SpinOffice CRM, Zoho ContactManager, BigContacts and Clay.
Some top alternatives to Salesforce includes Salesforce Sales Cloud, Pipedrive, Thryv, Vendasta, Hubspot Marketing Hub, Dynamics 365 Marketing, ClickUp, Zoho CRM, HubSpot CRM, Microsoft Dynamics 365 for Sales, Netsuite CRM, Keap, Wisdom CRM, SalesCRM, SimpleCRM and Zoho CRM Plus.