Webbula vs ZeroBounce (2026): which should you pick?

Pick Webbula if

• Fits if you want threat scans alongside address checks
• Works for small teams on a fixed monthly credit pack

Look elsewhere if

• Watch out: On Demand and add-on credit rates sit behind a slider and weren't read
• Skip it if you want a free plan, as it's only 100 sign-up credits
• Skip it if you want apps or integrations, as none are listed
• Watch out: enterprise needs go through sales rather than listed plans

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

Webbula

• Per-credit rates for On Demand and add-on credits sit behind a slider and were not read.
• Enterprise needs are handled through sales rather than listed plans.
• Webbula also sells data appends and audience segments that are separate from Zuvo.
• No mobile or desktop apps are listed; use is through the web platform and 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.

Webbula

Four Protect scans

Threat Detection plus Verification, Threat Detection only, Verification only, and Lead Validation, all on both plans.

Email verification

Checks format, syntax, domain, MX records and mailbox signals, and sorts addresses into valid, invalid, risky, catch-all or unknown.

Threat detection

The Core plan page cites more than 50 threat detection methods, with results grouped by risk category.

Bulk, batch or API

Verification is delivered by bulk processing, batch verification or API integration.

Team tools

On Demand includes member invitations, auto-replenishment rules and detailed usage reports.

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.

Webbula

• On DemandCustom

  No monthly charge; credits bought as needed at volume-based rates. The per-credit rates were not readable in the page text.

• Core$24.95

  per month for 2,500 credits

  Unused credits roll over month to month, and extra credits cost 10% less than On Demand rates.

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.

Webbula

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.