Yes, both Linked Booster and Leadfeeder offer a Free Trial.
Linked Booster is designed for Large Enterprises, Medium Business and Small Business.
Leadfeeder is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Linked Booster Starts at $129.99 whereas for Leadfeeder Starts at $63/Month.
Some top alternatives to Linked Booster includes Linda, LeadBI, Leadfeeder, Lead Forensics, Lead Connect, Leadmi, LinkedFusion, LeadBring, Linkdra and LiProspect.
Some top alternatives to Leadfeeder includes LeadBI, Whoisvisiting, Lead Forensics, Leadforms, Leadinfo, LeadMine, Leadenhancer, Dynamic Leads and Lead Revealer.