NeverBounce vs Kickbox
Asking which is better gets a different answer depending on what you need to see before you buy. Kickbox prints a full price ladder and a rule on what it bills. NeverBounce sells through ZoomInfo's orbit and keeps its prices behind a captcha. Both verify lists in bulk, and both have been at it for years.
| NeverBounce | Kickbox | |
|---|---|---|
| Company behind it | ZoomInfo, which owns it | A deliverability consultancy that also sells verification |
| Price for 10,000 | Structure only: metered rate or bulk package | $70 |
| Price for 100,000 | Structure only: bulk ladder | $500 ($1,100 for 250,000) |
| Free allowance | Free credits on signup | 100 free checks |
| Credit expiry | Not stated on the pages we could reach | One year from purchase |
| Unresolvable results | No published policy we could read | Not billed; only definitive results count |
| What comes back | A verdict label per address | A verdict plus the Sendex quality score |
Figures read from each vendor's own page in September 2026. Prices move, so confirm on the vendor's own pricing page before you buy.
Where each one is stronger
What each vendor does that the other does not, stated as capability rather than advice.
NeverBounce strengths
- NeverBounce sits inside ZoomInfo, which owns it. If your contact data comes from ZoomInfo, verification can ride the same contract and the same procurement review. It sells a metered rate for steady use beside a bulk ladder for large files. Its help centre covers result codes, accept-all handling, turnaround and a guarantee, though the pages sit behind the same captcha as its prices.
Kickbox strengths
- Kickbox publishes every tier on its own site: $5 for 500, $10 for 1,000, $70 for 10,000, $500 for 100,000 and $2,999 for a million, with 100 free checks. It bills only definitive results, so an address it couldn't settle stays off the invoice. Its Sendex score grades each address on quality, not only on whether it exists (read 24 September 2026).
What separates NeverBounce from Kickbox
Price transparency is the widest gap between them. Kickbox's ladder runs from $5 for 500 to $2,999 for a million, all on its own site, though it loads through a calculator. NeverBounce's pricing page returned a captcha to every browser we tried, and its robots file shuts out OpenAI's search bots (both checked 24 September 2026). If you need a number for a budget line today, only one of these gives it to you. The NeverBounce pricing page lays out how its models are structured.
Kickbox's expiry rule is the clause to check before you buy big. Credits last one year from purchase. Buy 250,000 for $1,100 ahead of a migration, use 150,000, and the rest lapses on the anniversary. NeverBounce doesn't state an expiry on the pages we could reach, so ask for it in writing. Do credits expire? covers the rule vendor by vendor.
Billing for unresolved addresses splits them too. Kickbox charges only for definitive results and says so. NeverBounce publishes no policy we could read. On a B2B list, the addresses no verifier can settle are a large share of the file, so that rule moves your real cost more than the tier does. The same question runs through Verifalia vs Kickbox, and the comparison hub lists the rest.
What NeverBounce and Kickbox both run into
Vendor accuracy percentages in this category count how often a returned verdict was right. They are calculated after the catch-alls and the servers that refuse to answer have left the denominator. Hunter tested 15 verifiers on 3,000 real business addresses (3 November 2025) and measured 31.2% to 70.0% overall. Both kinds of figure are real and they are not measuring the same thing.
Questions about NeverBounce and Kickbox
Is NeverBounce or Kickbox better?
The answer turns on what you need to see before buying. Kickbox publishes every tier, from $10 for 1,000 to $2,999 for a million, and bills only definitive results. NeverBounce fits a team already buying ZoomInfo data, with prices you get from them directly.
How much does Kickbox cost for 100,000 emails?
$500 for 100,000 on Kickbox's own pricing calculator, read 24 September 2026. The ladder runs on to $1,100 for 250,000 and $2,999 for a million, and 100 checks are free.
Do Kickbox credits expire?
Yes, one year from purchase, per Kickbox's pricing page read 24 September 2026. NeverBounce doesn't state an expiry on the pages we could reach, so ask before you buy in bulk.
Does either charge for unknown results?
Kickbox bills only definitive results, so an unknown costs nothing. NeverBounce publishes no policy we could read as of September 2026. Get its answer in writing, because it changes the real rate per usable address.
What is the Kickbox Sendex score?
Sendex is Kickbox's quality grade for an address, returned beside the verdict. It rates how good an address looks, not only whether it exists, so teams set send rules on a threshold rather than a label.
Ask NeverBounce for its per-tier price and its expiry rule in writing, then set both beside Kickbox's published ladder. Compare the two against our pricing page while you have the numbers open.
A third option, and we built it
100 free checks a month, no card, and credits that never expire. Unknown results are never billed.