Bulk Email Checker vs ZeroBounce (2026): which should you pick?

Pick Bulk Email Checker if

• Fits if you clean a list once in a while and don't want a subscription
• Works for developers who'd rather pay per check

Look elsewhere if

• Skip it if you want a real free plan, as the trial is 10 checks
• Watch out: unlimited API is set by threads, starting at $250 a month for one
• Skip it if you want apps or sync, as there are none listed
• Watch out: volumes above the largest pack go through sales

Pick ZeroBounce if

• Fits if you want list cleaning, warm-up and DMARC for one domain on one bill
• Works for developers who want an API with SDKs in 16 languages, or checks from an iPhone or iPad

Look elsewhere if

• Pricey if you only need a list cleaned, at about $129 for 10,000 checks
• Tight if you send from several domains, as ONE watches DMARC for just one
• Watch out: unused tests, monitors and warm-up seeds on ONE don't roll over, only verification credits do
• Watch out: the free 100 checks a month need a business email domain at sign-up
• Not for you if you're on Android or a desktop, as the only app is for iPhone and iPad

Bulk Email Checker

• The free trial is 10 single checks in the checker tool, not a free plan.
• Unlimited API capacity is set by concurrent threads, starting at $250 a month for one.
• Volumes above the largest pack on the page are handled through sales.
• No mobile or desktop apps are listed; it runs in the browser and through the API.

ZeroBounce

• Warm-up and DMARC monitoring come only with ZeroBounce ONE, and it covers a single DMARC domain.
• Unused tests, monitors, searches and warm-up seeds on ONE do not roll over; only verification credits do.
• The FAQ says credits never expire with an active ONE subscription; otherwise expiry rules may apply depending on when they were bought.
• The free credits need a business or premium email domain at sign-up.

Bulk Email Checker

Bulk list verification

Upload CSV or text files; duplicates are removed and each address goes through syntax, DNS, MX and SMTP checks.

Real-time API

A REST API checks addresses at signup, checkout or in a CRM, and credits are shared with the dashboard.

Disposable and role detection

Flags temporary-email services and generic role inboxes such as info@ and admin@, and detects catch-all servers.

Typo suggestions and MX data

Suggests corrections for common domain typos and returns mail server IP, hostname, location and ISP details.

Unlimited API by threads

A flat-rate option billed by concurrent threads on dedicated cloud resources, with month-to-month cancellation.

ZeroBounce

Email validation

Checks lists by file upload or real-time API and flags invalid, catch-all, disposable, role-based, abuse and spam-trap addresses. Unknown results and duplicates are free.

AI scoring

An AI model scores each address for quality at one extra credit, which helps decide whether to send to catch-all and other uncertain addresses.

Email Finder

Finds a person's work address from a name and company domain, at 20 credits per successful search; unknown results cost nothing.

Warm-up and placement tests

ZeroBounce ONE includes warm-up through a seed network, inbox placement tests against 20+ providers and email server tests.

Blacklist and DMARC monitoring

Monitors IPs and domains on blacklists and gathers daily DMARC reports for one domain on the ONE plan.

API, SDKs and iOS app

A validation and scoring API with SDKs in 16 languages, an MCP server, and an iOS app for checking lists from an iPhone or iPad.

Bulk Email Checker

• Credits$2.95

  one-time top-up for 1,000 credits, used as you go

  Packs include $9.95 for 10,000, $74.95 for 100,000 and $409.95 for 1,000,000 credits. Credits never expire.

• Unlimited API$250

  per month for 1 thread

  No per-email charge or credit cap; capacity is concurrent threads, $500 for 2, $750 for 3 and $1,000 for 4.

ZeroBounce

• Freemium$0

  100 verification credits that refill each month, one inbox placement test, one server test and one blacklist monitor.

• Pay-As-You-Go$39

  one-time for 2,000 credits

  The minimum purchase. Per-credit rates fall with volume: about $129 for 10,000 ($0.0129 each) and $0.0032 each at 1 million.

• ZeroBounce ONE$79

  per month for 10,000 credits, billed annually ($99 monthly)

  Credits roll over, plus 250 warm-up seeds, 100 inbox tests, 100 server tests, 10 blacklist monitors, 1 DMARC domain and 15% off extra credits.

• EnterpriseCustom

  Purchases or subscriptions of more than 1 million credits, with onboarding and training.

Bulk Email Checker

No public discounts listed.

ZeroBounce

• Annual discount

  20% off ZeroBounce ONE billed annually

  ZeroBounce ONE costs $79 a month when paid annually in one charge, against $99 billed monthly.