Kickbox vs NeverBounce
Kickbox publishes a full pay-as-you-go ladder, from $5 for 500 addresses to $2,999 for a million, so you can price any list before you buy. NeverBounce publishes pay-as-you-go packs from $8 for 1,000 to $2,500 for a million, with credits that expire 12 months after purchase, or Growth from $49 a month for up to 10,000. Pick Kickbox for occasional cleans you want priced in advance, and NeverBounce if you already work inside the ZoomInfo ecosystem it belongs to.
Prices read from kickbox.com and neverbounce.com. We sell a competing product, and it is not in the verdict above — where we fit is at the bottom.
| Kickbox | NeverBounce | |
|---|---|---|
| Cheapest route | $3.00–$10.00/1k | $49/mo or $2.00–$8.00/1k |
| Per year, if subscribed | — | $588 |
| Metering | Per-email fees, bought as credit packs | Pay-as-you-go packs from $8 for 1,000, credits expire 12 months after purchase; Growth from $49 a month for up to 10,000 |
| Credits expire | Yes | Yes |
| Product type | Verifier | Verifier |
| Price checked | 2026-11-03 | 2026-11-02 |
Cost for one pass over a list
Each vendor’s cheapest available route. An empty cell means that vendor does not publish an allowance we can calculate from, not that it is free.
| List size | Kickbox | NeverBounce | Cheaper |
|---|---|---|---|
| 1,000 | $10.00 | $8.00 | NeverBounce |
| 10,000 | $70.00 | $49.00 | NeverBounce |
| 50,000 | $275.00 | $99.00 | NeverBounce |
| 100,000 | $500.00 | $159.00 | NeverBounce |
| 1,000,000 | $2999.00 | $996.00 | NeverBounce |
Cost at a steady monthly volume
What the same volume costs every month, on each vendor’s cheapest route that covers it in one month: a subscription tier whose allowance fits, or buying the covering pack again.
| Per month | Kickbox | NeverBounce |
|---|---|---|
| 10,000 | $70.00Pay as you go: 10,000-credit pack at $7.00 per 1,000 | $49.00$49/mo plan with 10,000 a month |
| 50,000 | $275.00Pay as you go: 50,000-credit pack at $5.50 per 1,000 | $99.00$99/mo plan with 50,000 a month |
| 100,000 | $500.00Pay as you go: 100,000-credit pack at $5.00 per 1,000 | $159.00$159/mo plan with 100,000 a month |
| 1,000,000 | $2999.00Pay as you go: 1,000,000-credit pack at $3.00 per 1,000 | $999.00$999/mo plan with 1,000,000 a month |
How each one bills you
Kickbox charges $10.00 per 1,000 on a 500 pack, falling to $3.00 at 1,000,000, pay as you go with no subscription, metered as per-email fees, bought as credit packs. NeverBounce charges $49 a month for 10,000 credits, or pay as you go from $8.00 per 1,000 on a 1,000 pack, falling to $2.00 at 2,000,000, metered as pay-as-you-go packs from $8 for 1,000, credits expire 12 months after purchase; growth from $49 a month for up to 10,000.
Kickbox's purchased credits carry a limited validity. NeverBounce's purchased credits carry a limited validity. For uneven volume, expiry often matters more than the headline price, because credits that lapse raise the real cost of every address you did verify.
What to watch with Kickbox: verification is billed per email, so cleaning a large list is a variable cost you cannot forecast from the plan price. With NeverBounce: credits expire, so an allowance bought for a campaign that slipped a quarter is simply gone.
Both meter verifications, so checking the same list again costs again. Before committing to either, verify an address you invented at a real domain and an address at a catch-all domain on both. The first should come back invalid and the second as risky or accept-all, not valid.
Choose Kickbox if
you clean lists occasionally and want to know the exact price of each job before you run it.
Choose NeverBounce if
you are already a ZoomInfo customer and want verification next to it, and your volume is steady enough that expiring credits do not go to waste.
Disclosure — our product
Where SimpleVerifier fits, and where it does not
We publish this comparison and we sell a third option, so treat the rest of this section as the pitch it is. SimpleVerifier is a monthly price with no per-email fees: verification is never cut off (each plan sets how many a month run at full speed) and API calls are included each month, so there are no credits to buy or expire:
Pro $39/mo
Email verification with the first 100,000 checks a month at full speed, then slower, never cut off, plus the finder and the API.
Pro + Phone $49.99/mo
Pro with the phone add-on: live carrier lookups for your phone lists.
Business $99/mo
For senders with big lists: the first 300,000 checks a month at full speed, then slower, never cut off.
Agency $249/mo
For agencies running lists for clients: the first 750,000 checks a month at full speed, then slower, never cut off.
That is worth it in two cases: large lists, because volume does not change the price, and lists you verify repeatedly, because a confirmed result is cached for 14 days so the second pass costs nothing. Outside those two cases, a metered vendor is usually cheaper and you should use one, Kickbox and NeverBounce included.
Run the same test on any verifier
Type any address. It gets the same check the paid plans run: syntax, the domain’s mail servers and, where the provider allows it, a live mailbox check. Nothing is sent to the address.
Five checks a minute, no account needed. Nothing is sent to the address — we ask its mail server whether the mailbox exists, then disconnect.
Have a list? Sign in with Google and the first 100 addresses are checked free, with results to download. No card.
By continuing you agree to our Terms and Privacy Policy.
Common questions
- Kickbox or NeverBounce — which is better?
- Kickbox publishes a full pay-as-you-go ladder, from $5 for 500 addresses to $2,999 for a million, so you can price any list before you buy. NeverBounce publishes pay-as-you-go packs from $8 for 1,000 to $2,500 for a million, with credits that expire 12 months after purchase, or Growth from $49 a month for up to 10,000. Pick Kickbox for occasional cleans you want priced in advance, and NeverBounce if you already work inside the ZoomInfo ecosystem it belongs to.
- How much do Kickbox and NeverBounce cost?
- Kickbox costs $10.00 per 1,000 on a 500 pack, falling to $3.00 at 1,000,000, pay as you go with no subscription. NeverBounce costs $49 a month for 10,000 credits, or pay as you go from $8.00 per 1,000 on a 1,000 pack, falling to $2.00 at 2,000,000. Both read from their own pricing pages — Kickbox on 2026-11-03, NeverBounce on 2026-11-02.
- Should I choose Kickbox?
- Choose Kickbox if you clean lists occasionally and want to know the exact price of each job before you run it.
- Should I choose NeverBounce?
- Choose NeverBounce if you are already a ZoomInfo customer and want verification next to it, and your volume is steady enough that expiring credits do not go to waste.
- Is there an alternative to both Kickbox and NeverBounce?
- SimpleVerifier is a monthly plan rather than credits: Pro at $39, Business at $99 or Agency at $249 a month. Email verification is never cut off (on Pro the first 100,000 a month run at full speed, more on Business and Agency), and API calls are included each month. It suits large lists and lists you re-check often. For a small one-off clean, a metered vendor such as Kickbox or NeverBounce can cost less.