Yes, both Apollo.io and Zomentum offer a Free Trial.
Apollo.io is designed for Large Enterprises, Medium Business and Small Business.
Zomentum is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Apollo.io Starts at $15/User/Month when Billed Yearly whereas for Zomentum Starts at $99/Month.
Some top alternatives to Apollo.io includes AroundDeal, CrankWheel, ZoomInfo Engage, Outreach, Adapt Engage, LinkedIn Sales Navigator, Lusha, Seamless.AI, Use Outreach, OutReachly by 500apps, ZoomInfo and Closely.
Some top alternatives to Zomentum includes Apollo.io, AroundDeal, CrankWheel, ZoomInfo Engage, EngageBay, Salesmate, Zendesk Sell, eSalesTrack, VanillaSoft, Salesvue, Sales Booster by Leadspicker, SalesHandy and Zoomifier.