Head-to-head
Apollo.io vs Hunter.io
Apollo.io: Sales-engagement platform with a large contact database; API access is tiered by plan. Hunter.io: Email finding and verification API built around domain patterns.
Overlapping capabilities: Email finding.
Benchmark: people search
Apollo.io and Hunter.io have no completed benchmark run yet — this comparison fills in as suites run. Reviews below are live.
Reviews across the web
Apollo.io is one of the most-reviewed tools in the category (4.7 from ~9,600 G2 reviews) and wins on breadth and price, but sentiment splits sharply by platform: Trustpilot sits at 2.9/5 on the back of billing and account-management complaints. The persistent community criticism is data accuracy — practitioners report meaningfully higher bounce rates than Apollo's claimed 91% email accuracy, especially outside the US. The consensus is that it delivers real value if you verify lists before sending and watch the credit system.
Full roundup →Hunter.io keeps consistently good scores across G2 (4.4) and Capterra (4.6) and is widely seen as a simple, trustworthy email finder and verifier. The recurring criticism is that it has not kept pace with modern outbound: no phone data, a thin campaigns feature, and mid-pack accuracy in recent community benchmarks. It remains a default pick for straightforward email finding on public web data.
Full roundup →