Compare
SimpleCold vs ZeroBounce
An honest side-by-side. Run the same list through both and compare the results row by row.
Side by side
How they compare
What matters when you choose a verifier.
| SimpleCold |  ZeroBounce | |
|---|---|---|
| Result categories | Deliverable, Risky, Undeliverable (Processing while a slow server answers) | valid, invalid, catch-all, unknown, spamtrap, abuse, do_not_mail |
| Reason with each result | A statusMessage sentence on every result | A sub_status code (for example mailbox_not_found) on most results |
| Catch-all addresses | Flagged Risky within the normal credit. No paid step to resolve them | A separate catch-all status. Optional AI scoring costs 1 extra credit per address |
| Addresses the server won't confirm | Processing first, then the final result. If the server never confirms: Risky (status no_response), one credit used | Not charged (credited back). Greylisted addresses often validate if you resubmit them |
| Typo suggestions | Yes (suggestion) | Yes (did_you_mean) |
| CSV keeps your columns | Yes, with your exact headers. Readable result columns appended; duplicate rows removed and not charged | Yes. Original columns kept, ZB columns appended, results downloaded as a .zip split by status |
| API | Real-time single checks, batches of up to 50 and bulk CSV upload | Real-time single and batch endpoints, plus bulk file endpoints |
| Pricing model | One-off purchases from 5,000 credits, $0.005 down to $0.00125 per check. No subscription | Pay-as-you-go from $39 for 2,000 credits, or the ZeroBounce ONE subscription from $99 a month |
| 5,000 checks | $25 | $69 |
| 10,000 checks | $40 | $129 |
| 100,000 checks | $200 | $649 |
| Free to start | 200 credits on sign-up, no card | Freemium plan: 100 credits a month |
ZeroBounce facts are from its own site and docs, checked 26 Oct 2026. Prices are pay-as-you-go list prices in USD before discounts. ZeroBounce publishes per-credit rates; totals are the rate times the volume ($0.0138, $0.0129 and $0.00649 per credit). Sources are listed at the bottom of the page.
Where SimpleCold differs
What you get with SimpleCold
The differences from ZeroBounce that hold up on paper.
A sentence, not a code
Every result carries a statusMessage such as "The domain accepts mail for any address, so this mailbox can't be confirmed." ZeroBounce returns a sub_status code like mailbox_not_found.
Slow servers finish on their own
In the app and in CSV jobs a slow address shows Processing, then its final result. Over the API you ask again for free for 30 minutes. ZeroBounce suggests resubmitting greylisted unknowns.
Lower list price at common volumes
$40 for 10,000 checks against $129 at ZeroBounce's pay-as-you-go rate (checked 26 Oct 2026).
Results
Three results, each with a reason
No scores to decode. Every address lands in one category and the statusMessage says what we found.
[email protected]
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Test it on your own list
Upload the same file you ran through ZeroBounce and compare.
FAQ
SimpleCold vs ZeroBounce
Questions people ask when comparing.
Still have a question? Talk to us.
Sources
Where the ZeroBounce facts come from
Each page was checked on 26 Oct 2026. Spotted something out of date? Email [email protected] and we'll fix it.
| What we checked | Source |
|---|---|
| Result categories, Typo suggestions | zerobounce.net/docs/…/v2-validate-emails |
| Reason with each result, Catch-all addresses, Addresses the server won't confirm | zerobounce.net/docs/…/v2-status-codes |
| Catch-all addresses | zerobounce.net/zerobounce-ai |
| CSV keeps your columns | zerobounce.net/docs/…/uploading-files |
| CSV keeps your columns | zerobounce.net/docs/…/downloading-results |
| API | zerobounce.net/docs/email-validation-api-quickstart |
| Pricing model, Free to start | zerobounce.net/email-validation-pricing |
| Prices | zerobounce.net/docs/…/how-is-pricing-determined-for-email-verification |
Check your list before you send it
Start with 200 free credits. Pay per credit after that.