ZeroBounce vs Kickbox: Price at Volume and What Each Is Actually For

On published prices Kickbox is cheaper than ZeroBounce at every pay-as-you-go size we compared ($70 against $129 for 10,000), but only ZeroBounce sells a monthly subscription. ZeroBounce suits you if you want a free monthly allowance, a subscription and a wider suite; Kickbox if you buy one-off packs and want its sending-reputation expertise.

Neither is the best answer for everyone, and for steady monthly volume a flat plan from a third vendor can cost less than both. Prices below are what each vendor published on the dates shown.

Price at volume

	ZeroBounce	Kickbox
10,000 checks, one-off pack	$129	$70
100,000 checks, one-off pack	$649	$500
1,000,000 checks, one-off pack	$3,199	$2,999
Monthly plan, 10,000 a month	$99 (10,000)	No subscription listed
Monthly plan, 100,000 a month	$449 (100,000)	No subscription listed
Monthly plan, 1,000,000 a month	$2,499 (1,000,000)	No subscription listed
Smallest option	$39 for 2,000 pay-as-you-go	$5 for 500 credits
Prices read	www.zerobounce.net, 30 Oct 2026	kickbox.com, 3 Nov 2026

Where a size was not a listed pack, the next pack up covers it. "No subscription listed" means we found no monthly plan on the page when we read it.

Credits, expiry and free allowances

	ZeroBounce	Kickbox
Free credits	100 free monthly validations on sign-up with a business domain (their page, fetched 9 Nov 2026)	Not checked today (our fetch of their site was blocked)
Credit expiry	Credits never expire while you have an active ZeroBounce ONE subscription; without one, the page says expiration rules may apply depending on when the account was created or credits bought (fetched 9 Nov 2026)	Credits expire one year from purchase, per its terms (competitors.ts, 3 Nov)
Catch-all handling	Not described on the pricing page	Not covered here; see their pricing page

Where a cell says it was fetched on 9 Nov 2026, we read it from the vendor's own page that day; the rest comes from the dated pricing data above. We make no claim about accuracy for either vendor, and nobody can honestly rank verifiers on accuracy from a pricing page.

Who each is better for

ZeroBounce is better for you if you need their wider deliverability suite (inbox placement testing, blacklist monitoring and email server testing alongside verification) or a free monthly allowance. The catch: credits are the unit, so the bill scales with list size and a re-check costs full price again.

Kickbox is better for you if you need their deliverability consulting and sending-reputation tooling, which a verifier does not replace. The catch: credits expire after a year and every pack is a fresh purchase.

A third option: SimpleVerifier

SimpleVerifier Pro is a flat $39 a month. The first 100,000 checks a month run at full speed; after that it slows down but never cuts you off. Results are split into valid, risky and invalid, and risky means risky: a catch-all or otherwise uncertain address is labelled as such rather than counted as good.

Honest limits:

• At very small volumes one-off packs cost less than $39: ZeroBounce's smallest option is $39 for 2,000 pay-as-you-go and Kickbox's is $5 for 500 credits. If that is all you need, buy that.
• If you clean one very large list once, a one-off pack can beat a month of Pro. At 1,000,000 checks one-off, ZeroBounce was $3,199 and Kickbox was $2,999, all at full speed; on Pro only the first 100,000 a month run at full speed.
• If you verify 10,000 or more every month, compare Pro's $39 with ZeroBounce's $99 (10,000) and Kickbox's $70 one-off for 10,000. That is where a flat plan pays off.

Side by side pages: SimpleVerifier vs ZeroBounce and SimpleVerifier vs Kickbox. See pricing, or try a few addresses on the verify page.