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 a $50 monthly entry plan, and its credits expire. 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 | $50/mo |
| Per year, if subscribed | — | $600 |
| Metering | Per-email fees, bought as credit packs | Credits expire |
| Credits expire | Not stated | Allowance resets monthly |
| Product type | Verifier | Verifier |
| Price checked | 2026-10-01 | 2026-09-01 |
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 | — | Not comparable |
| 10,000 | $70.00 | — | Not comparable |
| 50,000 | $275.00 | — | Not comparable |
| 100,000 | $500.00 | — | Not comparable |
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 $50 a month, or $600 for a year, metered as credits expire.
Kickbox's page does not say whether credits expire. NeverBounce's allowance is tied to the subscription period. 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 flat monthly price with unlimited email verifications and API access included, so there are no credits to buy or expire:
Pro $29.99/mo
Unlimited email verification, finder and phone format checks.
Email + Phone $49.99/mo
Everything in Pro, plus live carrier lookups for your phone lists.
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.
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 a $50 monthly entry plan, and its credits expire. 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 $50 a month, or $600 for a year. Both read from their own pricing pages — Kickbox on 2026-10-01, NeverBounce on 2026-09-01.
- 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 flat monthly plan rather than credits: Pro at $29.99 a month or Email + Phone at $49.99 a month, with unlimited email verifications and API access included. 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.