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Review Breakdowns, With Sample Sizes

What G2, Capterra, Trustpilot, and TrustRadius reviewers actually say about the tools we compete with. Every score is shown with its review count and verification date, and we say plainly where each product is strong.

Disclosure: 1Lookup competes with these products. Sources are linked on every page so you can check us.

ZoomInfo logoZoomInfo reviewsG2 4.5/5 from 9,100+ reviews, verified July 2026Apollo.io logoApollo.io reviewsG2 4.7/5 from 9,300+ reviews, verified July 2026NeverBounce logoNeverBounce reviewsG2 4.1/5 from 137+ reviews, verified July 2026ZeroBounce logoZeroBounce reviewsTrustpilot 4.9/5 from 2,100+ reviews, verified July 2026

Looking for head-to-head pricing instead? Every comparison we publish is in the comparison directory, and curated shortlists live under alternatives.