MillionVerifier
Stands out: Risky results are refunded, credits never expire, and catch-all checks are included at no extra cost.
Watch out: You pay upfront for a pack, not a monthly plan. The $39 entry pack is 10,000 credits, so small one-off lists cost more per email.
Not the right fit for
- Teams that only verify a few hundred emails
- Buyers who want lead search built into the verifier
ZeroBounce
Stands out: Validation plus quality scoring on one meter, with a real free 100-credit allowance and a public $99/month subscription.
Watch out: Pay-as-you-go starts at $39 for 2,000 validations if you do not want a subscription. Heavy lists will burn the 10,000-credit ONE cap.
Not the right fit for
- Teams that needed a finder, not a verifier
- High-volume senders who will outgrow 10k/month immediately