NeverBounce vs ZeroBounce comes down to scope and price model. NeverBounce is a verifier with a long list of integrations that now adds AI lead scoring on its Growth plan; ZeroBounce is a deliverability suite (inbox tests, blacklist monitoring, warmup, DMARC monitoring) built around a verifier. This comparison uses only each vendor’s own pricing page and API documentation, checked October 10–11, 2026.
Disclosure: we make emailvalidation.io, a third verifier covered briefly at the end. Both vendors’ strengths are listed in their own sections, and the sources are at the end.
Quick verdict
- Choose NeverBounce for no-code connections (80+ integrations, CRM auto-sync on Growth), a JavaScript form widget, and lower prices: $8 for 1,000 credits, $400 for 100,000, or $49 a month for up to 10,000.
- Choose ZeroBounce if you want more result types (spam traps, abuse, do-not-mail), a choice of US or EU API endpoints, unknown results that are never charged, and deliverability tools in the same account.
- Look at a third option if you only need verification at steady monthly volume; see the section at the end.
NeverBounce vs ZeroBounce pricing
| Row label | NeverBounce | ZeroBounce |
|---|---|---|
| Smallest purchase | 1,000 credits for $8 | 2,000 credits for $39 |
| 5,000 checks | $40 ($0.008 each) | $69 ($0.0138 each) |
| 10,000 checks | $50 in credits ($0.005 each), or Growth at $49 / month | $129 in credits ($0.0129 each), or ZeroBounce ONE at $99 / month (yearly billing saves 20%) |
| 25,000 checks | $125 ($0.005 each) | No tier listed between 10,000 and 100,000 |
| 100,000 checks | $400 ($0.004 each), or Growth at $159 / month | $649 ($0.00649 each) |
| Large volume | Enterprise: custom, “typically used for 250,000+ emails per month” | Enterprise pricing above 1 million credits |
| Free tier | Free test credits and a free first list analysis (number not stated) | Freemium: 100 credits a month with a business domain |
| Credit expiry | 12 months after purchase | Never, with an active ZeroBounce ONE subscription |
| Not charged | Duplicates (Growth plan) | Unknown results and duplicates |
NeverBounce’s pricing page lists its pay-as-you-go volumes in a drop-down: $0.008 per credit up to 5,000, $0.005 from 10,000 and $0.004 from 100,000. ZeroBounce’s per-credit rates come from its billing FAQ; the same FAQ gives ZeroBounce ONE subscribers 15% off additional credits.
Features compared
| Row label | NeverBounce | ZeroBounce |
|---|---|---|
| Real-time API | GET /v4.2/single/check, optional timeout in seconds | GET /v2/validate, timeout 3–60 seconds (default 30) |
| API hosts | api | Default, US-only and EU endpoints |
| Rate limit | Not stated on the pages we checked | 80,000 requests per 10 seconds (100,000 with ZeroBounce ONE) |
| Small batches | – | validatebatch, up to 200 addresses per call |
| Bulk | Jobs API: supplied data or a remote file, 25 MB per request, callback URL; 10 lists at once (unlimited on Growth) | File API: CSV or TXT, “no restriction on file size, number of emails, or number of files”, callback URL |
| Free preview | run_sample estimates a list’s bounce rate “without costing you” | – |
| Results | valid, invalid, disposable, catchall, unknown | valid, invalid, catch-all, unknown, spamtrap, abuse, do_not_mail, with sub-statuses |
| Catch-all | catchall result plus accepts_all flag | catch-all status |
| Extra signals | 22 flags (role account, free host, spam trap network and more), typo suggestions | Sub-statuses such as role_based, disposable, possible_typo; AI scoring and activity data |
| Integrations | 80+ (Zapier, n8n, HubSpot, Mailchimp and more) | Integrations directory (HubSpot, Mailchimp, Zapier named) |
| Libraries | PHP, Ruby, Node.js, Python, Go, .NET, Java; JavaScript widget | See ZeroBounce’s documentation |
| Beyond verification | Growth: 200 AI-selected leads a month, AI scoring, CRM auto-sync | Inbox and server tests, blacklist monitoring, warmup, DMARC monitoring, email finder |
Where NeverBounce is stronger
- Lower prices. 1,000 credits cost $8 and 100,000 cost $400, against $649 at ZeroBounce. The Growth plan covers up to 10,000 a month for $49, against $99 a month for ZeroBounce ONE at the same volume (20% less with yearly billing).
- Integrations. More than 80 listed, plus CRM auto-sync on Growth so new contacts are checked without uploads.
- A form widget. NeverBounce documents a JavaScript widget for sign-up forms, with events for results and submit.
- Wrappers and a clear jobs API. Official wrappers cover seven languages, and the jobs API has clear steps (create, parse, start, status, results), plus a free sample run before you spend credits on a list.
Where ZeroBounce is stronger
- More result types.
spamtrap,abuseanddo_not_mailseparate risks that NeverBounce reports as flags or not at all, and sub-statuses explain each verdict. - Unknown results are never charged. ZeroBounce says so on its pricing page and in its API documentation. NeverBounce’s pricing page doesn’t address unknown results.
- Data location choice. Separate US-only and EU API endpoints.
- Credits that last. No expiry with an active subscription, and unused subscription credits roll over. NeverBounce credits expire after 12 months.
- A free monthly allowance. 100 credits every month with a business-domain sign-up, plus one inbox test, one server test and one blacklist monitor.
- Deliverability tools. Warmup, DMARC monitoring and activity data are part of the paid product.
A third option: emailvalidation.io
If you only need verification, here is what we offer, from our own email validation API pricing page:
| Row label | emailvalidation.io |
|---|---|
| 5,000 checks | $9.99 / month (Small) |
| 25,000 checks | $34.99 / month (Medium) |
| 100,000 checks | $94.99 / month (Large) |
| Free tier | 100 checks a month, 10 requests a minute |
| Real-time API | GET /v1/info, no per-minute limit on paid plans |
| Bulk | Up to 100,000 addresses per job, JSON or CSV/TXT, one signed webhook on completion |
| Catch-all | deliverable with reason low_; catch_all field with catch_all=1 (Small plan and up) |
| Integrations | Zapier integration, MCP server, SDKs for JavaScript, Python and PHP |
Yearly billing gives two months free. Only successful calls count; in bulk jobs, duplicates and invalid rows are free and timeouts are refunded when the job finishes. Large lists can take a day or longer, because checks are paced per receiving mail server. We don’t detect spam traps, offer integrations on the scale of NeverBounce’s, or sell deliverability tools like ZeroBounce’s. The email validation API page shows a full response, and our catch-all email guide covers those addresses.
More comparisons: NeverBounce alternatives, ZeroBounce alternatives and the best email verification tools.
Sources
Checked October 10, 2026: NeverBounce pricing (pay as you go, Growth, Enterprise, free credits, expiry, integrations); NeverBounce single check (results, flags, wrappers, widget) and jobs create (input, size limit, sample, callback); ZeroBounce pricing (Freemium, ZeroBounce ONE, expiry, unknown results, finder); ZeroBounce pricing FAQ (per-credit rates, subscription); ZeroBounce validate, batch validate, send file and status codes; ZeroBounce integrations; emailvalidation.io pricing. Checked October 11, 2026: NeverBounce pricing (pay-as-you-go volumes, Growth tiers).