ZeroBounce vs MillionVerifier: Bulk Price or More Tools

The short answer: for a large or old list, MillionVerifier's published price is a fraction of ZeroBounce's: a million credits cost $449 there against $3,199 for ZeroBounce's pack or $2,499 for a month of ZeroBounce ONE, and 100,000 cost $149 against $649 (MillionVerifier pricing, ZeroBounce pricing, checked on 26 October 2026). ZeroBounce charges more and sells more around the check: catch-all scoring, a finer split of risky addresses, and warm-up, placement tests and DMARC monitoring in ONE. Choose MillionVerifier if your job is cleaning big lists before a send at the lower price per check; choose ZeroBounce if your job is verification inside a wider deliverability routine.

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Three checks before you upload:

1. The clean you will run, priced. For example, a 100,000-address list cleaned twice a year needs 200,000 credits. MillionVerifier sells no pack of that size, but its 500,000 pack costs $299 and its credits never expire, enough for five such cleans; ZeroBounce's packs would cost 2 x $649 = $1,298 for the two (MillionVerifier, ZeroBounce).
2. The platform the list lives in. MillionVerifier's EverClean verifies new contacts every day inside Mailchimp, HubSpot or ActiveCampaign (homepage); ZeroBounce validates new contacts in its integrations once real-time validation is switched on (integrations docs). The one that already reaches your platform saves an export.
3. Hard bounces inside each vendor's window. MillionVerifier's guarantee looks at sends within 7 days of verifying and a 4% hard-bounce line (money-back terms); ZeroBounce's looks at sends within 72 hours (the ZB Guarantee). Record the hard-bounce rate of the first send against the window of the tool you used.

Question by question

Sources: MillionVerifier's homepage, goodwill credits article, money-back terms and credit information; ZeroBounce's pricing page, guarantee and MCP docs.

The differences that matter

What you are charged for

MillionVerifier deducts a credit per address, then adds back the credits spent on risky results, unknown and catch-all, once verification finishes; accounts its system flags for misuse, such as regularly verifying scraped addresses, lose that refund (goodwill credits article). ZeroBounce does not charge for unknowns or duplicates, charges for catch-alls like any result, and charges again if you score them (pricing page). On a B2B list where many domains accept everything, that rule moves the price as much as the rate card does.

Two money-back promises, built differently

MillionVerifier refunds your last payment if the hard-bounce rate on addresses it returned as OK exceeds 4%, provided you uploaded the file on its website (not the single-address API), mailed every OK address within 7 days through an email service that reports hard and soft bounces, and let MillionVerifier log in to that account to review them (money-back terms). ZeroBounce refunds 5% of the validation cost for each point below 99.6%, if you mailed only the valid file within 72 hours to an opt-in list of 1,000 or more and supply the SMTP bounce codes (the ZB Guarantee). One pays the whole purchase back on a clear threshold and asks for access to your sender; the other pays a share and asks for your bounce logs.

What surrounds the check

MillionVerifier stays with verification: bulk, single, API, catch-all handling and the daily EverClean pass in your email platform. ZeroBounce's ONE adds sender-side tools; at 10,000 credits a month that means 250 warm-up seeds a day, 100 inbox placement tests and one DMARC-monitored domain (homepage).

Price per credit, as each page shows it

USD, checked on 26 October 2026 on the MillionVerifier pricing section and the ZeroBounce pricing page. MillionVerifier also lists 500,000 for $299, 5 million for $1,599 and 10 million for $2,599, as one-off payments with no monthly plan. ZeroBounce ONE costs $99 a month at 10,000 credits, $449 at 100,000 and $2,499 at a million.

The documented workflow, with a person on the branch

MillionVerifier's help centre publishes an n8n workflow: an n8n form captures a lead, an HTTP Request node sends the address to MillionVerifier's API, an If node lets only good-quality results through, Apollo enriches the lead and Instantly adds it to a campaign. Before it goes live, route everything the If node rejects to a sheet that a person reads weekly, and keep the Instantly step on a paused campaign until someone has looked at the first batch. The workflow verifies; a person decides what reaches a prospect.

ZeroBounce's equivalent is its MCP server, which lets an assistant validate single addresses or batches and send files for bulk validation from a chat.

Free first, and one setting to leave off

Each gives 100 free credits (MillionVerifier, ZeroBounce). Run the same 100 addresses through both and compare the OK or valid counts; then send to the agreed addresses and see what bounces. That test costs nothing, and for a small list it may settle the question.

When you buy MillionVerifier credits, look at the auto top-up offer before you accept it. Its prices page gives 10% extra credits on every payment once auto top-up is set up, so the bonus rewards leaving a card ready to buy more without anyone deciding to; with credits that never expire, a manual purchase when the balance runs low costs you only the 10%.

Choose MillionVerifier if

• Your lists are large and the price per check decides.
• Catch-all results should not cost you a credit.
• You want an n8n or EverClean routine rather than a subscription.

Choose ZeroBounce if

• Catch-alls should be scored, not just flagged.
• You want warm-up, placement tests and DMARC monitoring with verification.
• You prefer a guarantee measured on accuracy with your bounce logs as evidence.

ZeroBounce has an entry and a how-to on this site; MillionVerifier has none, so its homepage and help centre are the sources. For the hygiene routine around either tool, see clean an email list before a send.

FAQ

Does MillionVerifier have a monthly plan?

No. Its credit information says purchases are one-off payments with no monthly or yearly plan, the credits never expire, and only the listed packages can be bought.

Can I move MillionVerifier credits to another account?

No. The same article says credits cannot be transferred between accounts and a pack cannot be upgraded after purchase; buy another pack instead.

Who runs MillionVerifier?

Its pages name Southern Vector Limited of Christchurch, New Zealand, and say it signs a data processing agreement on every plan, the free one included (prices page, homepage).