Yes, both COSLR and Leadfeeder offer a Free Trial.
COSLR is designed for Large Enterprises, Medium Business and Small Business.
Leadfeeder is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for COSLR Starts at $79/Month whereas for Leadfeeder Starts at $63/Month.
Some top alternatives to COSLR includes Leadfeeder, LeadFuze, Lead Forensics, eSales Hub, Closely, LeadsChilly, Dynamic Leads, Lead Revealer, ConvertLead and Click2Contact.
Some top alternatives to Leadfeeder includes LeadBI, Whoisvisiting, Lead Forensics, Leadforms, Leadinfo, LeadMine, Leadenhancer, Dynamic Leads and Lead Revealer.