Xverify vs Kickbox
Up to 10,000 addresses their published prices are identical: $10 for 1,000, $40 for 5,000 and $70 for 10,000. Above that Xverify is cheaper, at $250 against $275 for 50,000 and $400 against $500 for 100,000. Kickbox's advantage is its deliverability consulting.
Prices read from xverify.com and kickbox.com. We sell a competing product, and it is not in the verdict above — where we fit is at the bottom.
| Xverify | Kickbox | |
|---|---|---|
| Cheapest route | $1.00–$10.00/1k | $3.00–$10.00/1k |
| Per year, if subscribed | — | — |
| Metering | Verifications bought on demand, no minimum | Per-email fees, bought as credit packs |
| Credits expire | Not stated | Not stated |
| Product type | Verifier | Verifier |
| Price checked | 2026-10-12 | 2026-10-01 |
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 | Xverify | Kickbox | Cheaper |
|---|---|---|---|
| 1,000 | $10.00 | $10.00 | Equal |
| 10,000 | $70.00 | $70.00 | Equal |
| 50,000 | $250.00 | $275.00 | Xverify |
| 100,000 | $400.00 | $500.00 | Xverify |
How each one bills you
Xverify charges $10.00 per 1,000 on a 500 pack, falling to $1.00 at 2,500,000, pay as you go with no subscription, metered as verifications bought on demand, no minimum. 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.
Xverify's page does not say whether credits expire. Kickbox's page does not say whether credits expire. 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 Xverify: it is billed per verification, so a 100,000-address list costs $400 each time it is cleaned. With Kickbox: verification is billed per email, so cleaning a large list is a variable cost you cannot forecast from the plan price.
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 Xverify if
you clean lists larger than 10,000 and want the lower published price.
Choose Kickbox if
you want deliverability and sending reputation advice from the vendor that verifies your list.
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, Xverify and Kickbox included.
Common questions
- Xverify or Kickbox — which is better?
- Up to 10,000 addresses their published prices are identical: $10 for 1,000, $40 for 5,000 and $70 for 10,000. Above that Xverify is cheaper, at $250 against $275 for 50,000 and $400 against $500 for 100,000. Kickbox's advantage is its deliverability consulting.
- How much do Xverify and Kickbox cost?
- Xverify costs $10.00 per 1,000 on a 500 pack, falling to $1.00 at 2,500,000, pay as you go with no subscription. 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. Both read from their own pricing pages — Xverify on 2026-10-12, Kickbox on 2026-10-01.
- Should I choose Xverify?
- Choose Xverify if you clean lists larger than 10,000 and want the lower published price.
- Should I choose Kickbox?
- Choose Kickbox if you want deliverability and sending reputation advice from the vendor that verifies your list.
- Is there an alternative to both Xverify and Kickbox?
- 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 Xverify or Kickbox can cost less.