Both names end in "Bounce" because both products do the same job: they check an address before you mail it, so the message does not bounce. That shared job is where the overlap stops. ZapBounce has its own site, its own account, its own API and its own prices. An account, a key or a credit balance at one service means nothing at the other.
ZapBounce runs its own SMTP check. It connects to the receiving server on port 25, asks whether the mailbox exists, and closes the connection before any message is sent. Every address comes back as one of four results: valid, invalid, catch_all or unknown. You can read the full sequence on how it works.
ZapBounce bills in a way you can check on one page. One credit buys one definite result. An unknown result is never billed, and neither is a duplicate or an error. Pay as you go starts at $5 for 1,000 addresses with no minimum, and credits never expire. A monthly plan costs 15% less than the same credits pay-as-you-go.
ZeroBounce, read on its own pricing page on 18 September 2026, starts at $39 for a 2,000-credit minimum and gives 100 free checks a month on a business domain. It publishes an accuracy claim of 99.6%. For the full side-by-side, see ZapBounce vs ZeroBounce or the ZeroBounce pricing breakdown.
ZapBounce reports two numbers for every list, not one. Coverage is the share of the list that reached a verdict. Accuracy is how often those verdicts were right. You see both side by side, so a high accuracy figure can never hide a list where half the addresses got no answer. The method is set out on our accuracy page.
Related questions
Is ZapBounce a ZeroBounce product or reseller?
No. ZapBounce is its own email verification service, operated by Hashlogics, a US LLC. It runs its own SMTP check and sells its own credits. ZeroBounce is a separate company with its own product, accounts and prices.
Can I use my ZeroBounce credits or API key on ZapBounce?
No. The two services share no accounts, keys or balances. A ZapBounce account starts with 100 free credits a month and no card, and paid credits start at $5 for 1,000 addresses.
Who operates ZapBounce?
ZapBounce is operated by Hashlogics, a US LLC. The service is hosted in the United States, and a list only leaves that region for the SMTP probe to the receiving mail server.
Is ZapBounce a real email verification service?
Yes. ZapBounce checks each address with its own SMTP probe on port 25 and returns one of four results: valid, invalid, catch_all or unknown. Unknown results are never billed, and credits never expire.