Kickbox alternative
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, metered as per-email fees, bought as credit packs. SimpleVerifier is $29.99 a month with no cap on verifications, the email finder or enrichment. Both run real SMTP mailbox checks. Keep Kickbox if you need their deliverability consulting and sending reputation tooling, which is genuinely strong and not something a verifier replaces.
Prices read from kickbox.com · last checked 2026-10-01
| Kickbox | SimpleVerifier | |
|---|---|---|
| Cheapest route | $3.00–$10.00/1k | $29.99/mo |
| Per year | — | $359.88 |
| Verification limit | Per-email fees, bought as credit packs | Unlimited |
| Real SMTP mailbox check | ||
| Re-verifying a list costs again | cached 14 days | |
| Email finder included | Varies by plan | Yes, unlimited |
| Free public tools, no account | Limited trial credits | Yes, free tools |
What it actually costs, by list size
One pass over a list, on Kickbox’s cheapest available route versus one month of SimpleVerifier. Where Kickbox sells both a subscription and pay-as-you-go, the cheaper of the two is used.
| List size | Kickbox | SimpleVerifier | Cheaper |
|---|---|---|---|
| 1,000 | $10.001,000-credit pack at $10.00 per 1,000 | $29.99 | Kickbox |
| 10,000 | $70.0010,000-credit pack at $7.00 per 1,000 | $29.99 | SimpleVerifier |
| 50,000 | $275.0050,000-credit pack at $5.50 per 1,000 | $29.99 | SimpleVerifier |
| 100,000 | $500.00100,000-credit pack at $5.00 per 1,000 | $29.99 | SimpleVerifier |
One pass only. Every figure in the Kickbox column recurs each time you re-verify; the SimpleVerifier column does not, because confirmed results are cached for 14 days and volume does not change the price. Adjust for your own pattern in the cost calculator.
Where Kickbox’s pricing bites
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, and verification is billed per email, so cleaning a large list is a variable cost you cannot forecast from the plan price. That is not a criticism of the product — it is how per-address pricing works, and it is fine when your volume is small and steady. It stops being fine the month you acquire a list, inherit a CRM export, or want to re-check something you verified in the spring.
The reason we can price flat is narrow and worth stating plainly: a mailbox check is a DNS lookup plus a short SMTP conversation, and it costs us nothing per address. Metering it would be a pricing choice, not a cost recovery. The one feature with a genuine per-record cost — lead sourcing — does carry a published fair-use limit of 10,000 a month.
Who should stay with Kickbox
Keep Kickbox if you need their deliverability consulting and sending reputation tooling, which is genuinely strong and not something a verifier replaces. A dedicated verifier replaces one part of that, not the whole thing, and switching to shave a few dollars a month while losing a workflow you depend on is a bad trade.
Test both before you decide
Do not take either vendor’s word on accuracy. Invent an address at a real domain and verify it on both. A tool doing real mailbox checks returns invalid; one checking only syntax and MX returns valid. You can run that test on our free checker with no account.
Common questions
- How much does Kickbox 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, metered as: per-email fees, bought as credit packs. Prices read from kickbox.com on 2026-10-01.
- Is there a cheaper alternative to Kickbox?
- SimpleVerifier is $29.99 a month with no limit on verifications, against $10.00 per 1,000 on a 500 pack, falling to $3.00 at 1,000,000, pay as you go with no subscription for Kickbox. Which is actually cheaper depends on your volume and how often you re-verify — verification is billed per email, so cleaning a large list is a variable cost you cannot forecast from the plan price. Keep Kickbox if you need their deliverability consulting and sending reputation tooling, which is genuinely strong and not something a verifier replaces.
- Should I switch from Kickbox?
- Keep Kickbox if you need their deliverability consulting and sending reputation tooling, which is genuinely strong and not something a verifier replaces. Switch if your verification volume is spiky or large and you would rather pay one flat price than manage an allowance.
- Does SimpleVerifier do real SMTP mailbox checks like Kickbox?
- Yes. Every address gets a syntax check, an MX lookup and an SMTP conversation with the recipient's mail server to confirm the specific mailbox. Anything the probe cannot confirm is returned as risky rather than valid, and 8,740 disposable domains are blocked outright.
Try it against your own list
$29.99 a month, unlimited verifications, cancel anytime. Or run the free tools first — no account needed.