Buyer guide · SimpleVerifier Team
Pay-as-you-go email verification
Pay-as-you-go email verification means buying credits once and using them when you need them, with no monthly bill. SimpleVerifier sells them: 10,000 checks for $15, 25,000 checks for $29, 50,000 checks for $49, 100,000 checks for $79, 250,000 checks for $169. Its smallest monthly option is Starter, $9 a month for 2,500 emails a month, which you can cancel after a single month; above that, Pro is $39 a month. Several other vendors do sell packs, and the table compares them.
Starter covers CSV email verification only: the API and the email finder are on Pro, Business and Agency, and live phone lookups come with Pro + Phone at $49.99 a month. The allowance resets every billing month and unused emails don't roll over, so for one list a year a vendor whose pack credits never expire can cost less. If you verify more than 2,500 addresses a month, Pro at $39 is never cut off: the first 100,000 emails a month run at full speed, then big lists run slower.
Credit expiry is the detail to check on any pay-as-you-go offer. Credits that lapse after a month or a year raise the real cost of every address you did verify. The table marks the vendors that publish a never-expire policy.
One list, bought once, by vendor
| Vendor | 2,500 once | 10,000 once | 50,000 once |
|---|---|---|---|
| SimpleVerifier | $9 | $15 | $39 |
| Listclean | $5 | $15 | $35 |
| Bulk Email Checker | $5.95 | $9.95 | $44.95 |
| Truelist | $7 | $14 | $55 |
| MyEmailVerifier | $7 | $12 | $49 |
| Emails Checker | $7 | $10.50 | $35 |
| Verimail | $8 | $15 | $65 |
| Proofy | $8.50 | $15.30 | $44.20 |
| Reoon | $11.90 | $11.90 | $58.95 |
| Bouncify | $12 | $19 | $78 |
| Clearalist | $12.50 | $40 | $150 |
| DeBounce | $13.80 | $23 | $69 |
| Email List Validation | $14 | $49 | $158 |
| VeriMails | $15 | $15 | $39 |
| EmailListVerify | $16 | $25 | $89 |
| BillionVerify | $16 | $16 | $36 |
| SafetyMails | $17.75 | $39.80 | $125.70 |
| Verifalia | $18.90 | $49.90 | $219 |
| Pabbly Email Verification | $19 | $29 | Not published |
| Bounceless | $19 | $29 | $89 |
| Bouncer | $19.20 | $48 | $200 |
| QuickEmailVerification | $20 | $60 | $200 |
| Scrubby | $20 | $80 | $388 |
| Clearout | $23 | $58 | $290 |
| Email Hippo | $24.70 | $88.40 | $312 |
| Kickbox | $25 | $70 | $275 |
| MailerCheck | $25 | $80 | $300 |
| Xverify | $25 | $70 | $250 |
| EmailVerify.io | $25 | $25 | $75 |
| Mailfloss | $29 | $29 | $118 |
| MailboxValidator | $29.95 | $59.95 | $139.95 |
| Captain Verify | $31.50 | $63 | $159.30 |
| Emailable | $32.30 | $51 | $208.25 |
| BounceBan | $34 | $34 | $149 |
| Email Verifier API | $34.95 | $49.95 | $249.95 |
| MillionVerifier | $39 | $39 | $89 |
| NeverBounce | $40 | $49 | $99 |
| Enrichley | $59 | $118 | $298 |
| ZeroBounce | $69 | $99 | $379 |
| EmailOversight | $70 | $70 | $250 |
Lowest published route for one list of that size. Our figure is the cheaper of one month of the smallest plan that covers it and a one-time pack, where packs are sold. Where a vendor is below it, that vendor costs less for the job. Vendor prices read 12 Oct 2026 to 5 Nov 2026. Each vendor links to its comparison page, which records the date its prices were read. Check their site for current pricing before you buy.
SimpleVerifier facts: prices, packs and limits
- What it is
- Email verification with a real SMTP mailbox check: each address comes back valid, risky or invalid with a reason. Includes an email finder on Pro and up.
- Price per check
- Starter $9/mo for 2,500 ($3.60 per 1,000); Pro $39/mo, 100,000 a month at full speed ($0.39 per 1,000 when used), then slower, never cut off. Business $99/mo with 300,000 at full speed; Agency $249/mo with 750,000 at full speed.
- One-time packs
- 10,000 for $15 ($1.50 per 1,000); 25,000 for $29 ($1.16 per 1,000); 50,000 for $49 ($0.98 per 1,000); 100,000 for $79 ($0.79 per 1,000); 250,000 for $169 ($0.68 per 1,000). Credits never expire, run at standard speed, CSV verification only (no API or finder).
- Free checks
- First 100 email checks free with a Google sign-in, no card, once per account. Single checks on the free email checker need no account.
- Billing
- Monthly subscription, cancel anytime (yearly billing optional). One-time packs are listed above. Starter allowances reset monthly and do not roll over.
- Speed today
- One sending IP today, shared by every customer: about 13,000 mailbox checks a day in the standard lane. Bad syntax, dead domains and disposable addresses return at once; a list of 100,000 takes days, not hours, and each job shows its estimated finish time.
- Catch-all handling
- Catch-all (accept-all) addresses stay risky, never valid, and are graded higher, medium or lower likelihood with the reasons. Anything a mail server does not confirm is risky.
- API and MCP
- REST API on Pro, Business and Agency (Pro includes 10,000 calls a month, then $1.50 per 1,000). Remote MCP server with 6 tools for Claude, ChatGPT, Cursor and VS Code. No API on Starter.
- Integrations
- Connects to Instantly, Smartlead, HubSpot and Mailchimp by API key: verifies a campaign or list and tags each contact with its result. CSV in and out for any other tool.
- Phone
- Free phone format checks (country, type range). Live carrier and line-type lookups come with Pro + Phone at $49.99/mo (5,000 a month). It never says a number is in service.
- What it does not do
- No sending, warmup or inbox placement tests. No published accuracy benchmark against other verifiers. Catch-all domains, Yahoo and AOL cannot be confirmed, and Outlook.com and Hotmail mailboxes are not probed while Microsoft refuses checks from our server's network: all of these come back risky, never valid.
SimpleVerifier facts from our pricing page and product. Last updated .
Test it on a real address first
Type any address. It gets the same check the paid plans run: syntax, the domain’s mail servers and, where the provider allows it, a live mailbox check. Nothing is sent to the address.
Five checks a minute, no account needed. Nothing is sent to the address — we ask its mail server whether the mailbox exists, then disconnect.
Have a list? Sign in with Google and the first 100 addresses are checked free, with results to download. No card.
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Which plan for one list
One list of 2,500 or fewer: one month of Starter ($9). Bigger than that: one month of Pro ($39). Each one cancels from Billing when the job is done.
Or buy a one-time pack: 10,000 checks for $15, 25,000 checks for $29, 50,000 checks for $49, 100,000 checks for $79, 250,000 checks for $169. Packs never expire, so they suit a list you check once or a few times a year; they run at standard speed and cover CSV verification only. For 10,000 once, the $15 route is a one-time pack of 10,000 email checks that never expires.
Common questions
- Can I buy credits once instead?
- Yes: 10,000 checks for $15, 25,000 checks for $29, 50,000 checks for $49, 100,000 checks for $79, 250,000 checks for $169. The credits never expire. Packs run at standard speed and cover CSV verification only; the API and finder come with Pro and up.
- What does Starter count?
- One unique email address verified from a CSV, including the SMTP mailbox check and catch-all, disposable and role detection. Duplicates in the same file and addresses we can't check are not counted.
- Can I use Starter with the API?
- No. The API and the finder are on Pro at $39 a month (and on Business and Agency). Live phone lookups come with Pro + Phone at $49.99 a month.
Start with Starter, $9/mo
Pro is $39 a month and never cuts you off: the first 100,000 emails a month run at full speed, then big lists run slower. CSV uploads, the API (10,000 calls a month, then $1.50 per 1,000), the Google Sheets add-on and the email finder are included, and you can cancel any time. For smaller volumes, Starter is $9 a month for 2,500 emails a month.
The first 100 email checks are free with a Google sign-in, no card, on the same engine the paid plans use.