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DeBounce vs Kickbox

We give DeBounce a 2.6 GPA and Kickbox a 2.4, out of 4.0. DeBounce grades higher on value for money. They get the same grade on the free plan, features, ease of use and platforms.

Price, platforms and features side by side. The table says where each price was read and when.

DeBounce

Email list validation with credits from $15 that never expire

Free trial · from $15 one-time

Kickbox

Pay-as-you-go email verification with an optional threat score

Free trial · from $5 one-time

How we grade them

2.6GPADeBounceGood2.4GPAKickboxFair
Value for money
B$25 for a one-off 10,000 checks, taxes included, and the credits never expire. That's the cheapest among its listed rivals: Clearout is $32 a month billed yearly, MillionVerifier $39, Bouncer and Emailable $60 and ZeroBounce about $129.
C$70 for a one-off pack of 10,000. Among its listed rivals only ZeroBounce (about $129) costs more; NeverBounce is $50, Bouncer and Emailable $60 and DeBounce $25. Unknown results are refunded, and Threat Score costs one more credit only when it finds something.
Free plan and trial
CNo free plan, but 100 free credits with no card. Enough to test a sample of your list, not to clean it.
CNo free plan, but the first 100 checks are free. Enough to see what the results look like, not to clean a real list.
Features
CIt does the checking job fully: bulk files, an API and form widget, catch-all checks, name lookups and monthly list rechecks. That's a smaller job, though: no warm-up, placement tests or DMARC, and catch-all checks cost 10 credits each.
CIt does the checking job fully: bulk lists, a real-time API with a sandbox, a free check for disposable domains and an optional Threat Score. That's a smaller job, though: no warm-up, placement tests or DMARC tools.
Ease of use
BNo App Store rating on record, but nothing to set up: upload a list or import it from a connected email platform, and duplicates are removed free before checking.
BNo App Store rating on record, but nothing to set up: upload a list and it comes back sorted by deliverability. Kickbox says 100,000 addresses take about an hour.
Platforms and integrations
BWeb, an API and a JavaScript widget, with Mailchimp, HubSpot, Klaviyo, ActiveCampaign, Google Sheets, SendGrid, a WordPress plugin and Zapier. No phone or desktop app.
BWeb and an API, with Mailchimp, Klaviyo, HubSpot, Braze, Iterable, SendGrid and Salesforce, and more through Zapier. No phone or desktop app.
Best forthe cheapest pack for cleaning a listchecking sign-ups as they happen

The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: DeBounce and Kickbox. How we grade

Where they differ

  • DeBounce starts at $15 one-time for 5,000 credits. Kickbox starts at $5 one-time for 500 verifications.
In commonWebPublic APIEmail verification

At a glance

DeBounceKickbox
PricingFree trialFree trial
Starts at$15 one-time for 5,000 credits$5 one-time for 500 verifications
Free planNoneNone
Free trial100 free credits, no credit card requiredThe first 100 verifications are free
Web
Made byDeBounceJ2 Martech Corp
Price read fromdebounce.comkickbox.com
CheckedOct 18, 2026Oct 18, 2026

Who each one suits

DeBounce

  • Small senders who need a cheap first pack
  • Teams importing lists straight from Mailchimp, HubSpot or Klaviyo
  • WordPress sites that want sign-up forms checked

Kickbox

  • Marketers who verify a list now and then without a subscription
  • Developers adding real-time checks to a sign-up form
  • Teams on Braze, Iterable or Klaviyo that want verification built in

Worth knowing

DeBounce

  • Catch-all checks cost 10 credits each and enrichment 20, so they use up a pack much faster than plain validation.
  • The pricing page also offers a monthly option at 8% below pay-as-you-go; its prices show only in the calculator.
  • DeBounce verifies addresses only; it has no warm-up, inbox placement tests or DMARC tools.

Kickbox

  • Only pay-as-you-go packs are listed; there is no monthly plan on the pricing page.
  • Kickbox verifies addresses only; it has no warm-up, inbox placement testing or DMARC tools.
  • Threat Score can double the cost per address when it finds a signal.

Key features

DeBounce

Bulk list validation
Upload a list or import one from a connected email platform, and duplicates are removed free before checking. Greylisted checks are retried to cut unknown results.
API and form widget
A validation API and a JavaScript widget check addresses at sign-up, with a WordPress plugin and Zapier for no-code setups.
Catch-all validation
A deeper check of addresses on accept-all domains, at 10 credits per address instead of 1.
Data enrichment
Reverse email lookup returns the name behind an address, at 20 credits per successful match and nothing when it finds none.
List monitoring
Rechecks a connected list every month, costing twice the list size in credits each month.

Kickbox

List verification
Upload a list and Kickbox sorts each address by deliverability; the vendor says 100,000 addresses take about an hour.
Verification API
Checks addresses at sign-up in real time, with a sandbox mode for testing without spending credits and a free endpoint for spotting disposable domains.
Threat Score
Flags addresses linked to abuse, complaints or a poor sending reputation, for one extra credit only when a threat signal is found.
Native integrations
Verifies lists inside Mailchimp, Klaviyo, HubSpot, Braze, Iterable, SendGrid and others, with more through Zapier.
Deliverability consulting
Deliverability audits and consulting from Kickbox's own team are offered as a separate service beside verification.

Plans

DeBounce

  • Pay-As-You-Go$15

    one-time for 5,000 credits

    The minimum purchase; credits never expire. $25 for 10,000, $135 for 100,000, $750 for 1 million and $2,200 for 5 million, taxes included.

  • CustomCustom

    More than 5 million validations, through support.

Kickbox

  • Pay as you go$5

    one-time for 500 verifications

    Larger packs cost less per check: $10 for 1,000, $70 for 10,000, $500 for 100,000 and $2,999 for 1 million. Unknown results are refunded.

  • CustomCustom

    Volume pricing for more than 1 million verifications, through sales.

Ways to pay less

DeBounce

No public discounts listed.

Kickbox

  • Nonprofit

    15% off for nonprofits

    Kickbox gives nonprofit organizations a 15% discount on verification.

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