SimpleVerifier vs Kickbox (2026)
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. SimpleVerifier is $9 a month for 2,500 emails a month and $39 a month on Pro, which is never cut off (100,000 a month at full speed). Pick Kickbox if you need a vendor with published SOC II certification or deliverability consulting from the same team.; pick SimpleVerifier if you clean lists every month or in large batches and want the cost to stay flat..
Kickbox prices read from kickbox.com, checked . No accuracy benchmark was run.
Is SimpleVerifier a good alternative to Kickbox?
For large or repeated lists, often yes: SimpleVerifier is a flat monthly plan, while Kickbox meters usage. Every address gets a real SMTP mailbox check. Monthly plans: $9 for 2,500 emails, or Pro at $39 with 100,000 a month at full speed, never cut off. Kickbox's prices on this page were read November 3, 2026.
- What it is
- Email verification with a real SMTP mailbox check: each address comes back valid, risky or invalid with a reason. Includes an email finder on Pro and up.
- Price per check
- Starter $9/mo for 2,500 ($3.60 per 1,000); Pro $39/mo, 100,000 a month at full speed ($0.39 per 1,000 when used), then slower, never cut off. Business $99/mo with 300,000 at full speed; Agency $249/mo with 750,000 at full speed.
- One-time packs
- 10,000 for $15 ($1.50 per 1,000); 25,000 for $29 ($1.16 per 1,000); 50,000 for $49 ($0.98 per 1,000); 100,000 for $79 ($0.79 per 1,000); 250,000 for $169 ($0.68 per 1,000). Credits never expire, run at standard speed, CSV verification only (no API or finder).
- Free checks
- First 100 email checks free with a Google sign-in, no card, once per account. Single checks on the free email checker need no account.
- Billing
- Monthly subscription, cancel anytime (yearly billing optional). One-time packs are listed above. Starter allowances reset monthly and do not roll over.
- Speed today
- One sending IP today, shared by every customer: about 13,000 mailbox checks a day in the standard lane. Bad syntax, dead domains and disposable addresses return at once; a list of 100,000 takes days, not hours, and each job shows its estimated finish time.
- Catch-all handling
- Catch-all (accept-all) addresses stay risky, never valid, and are graded higher, medium or lower likelihood with the reasons. Anything a mail server does not confirm is risky.
- API and MCP
- REST API on Pro, Business and Agency (Pro includes 10,000 calls a month, then $1.50 per 1,000). Remote MCP server with 6 tools for Claude, ChatGPT, Cursor and VS Code. No API on Starter.
- Integrations
- Connects to Instantly, Smartlead, HubSpot and Mailchimp by API key: verifies a campaign or list and tags each contact with its result. CSV in and out for any other tool.
- Phone
- Free phone format checks (country, type range). Live carrier and line-type lookups come with Pro + Phone at $49.99/mo (5,000 a month). It never says a number is in service.
- What it does not do
- No sending, warmup or inbox placement tests. No published accuracy benchmark against other verifiers. Catch-all domains, Yahoo and AOL cannot be confirmed, and Outlook.com and Hotmail mailboxes are not probed while Microsoft refuses checks from our server's network: all of these come back risky, never valid.
SimpleVerifier facts from our pricing page and product. Last updated .
| Kickbox | SimpleVerifier | |
|---|---|---|
| Published price | $3.00–$10.00/1k | $9/mo, Pro $39/mo |
| How usage is metered | Per-email fees, bought as credit packs | Monthly plans; Pro is never cut off (100,000 a month at full speed, then a slower lane) |
| Free to start | 100 verifications | First 100 checks, one time, Google sign-in, no card |
| Re-checking a list | verification is billed per email, so cleaning a large list is a variable cost you cannot forecast from the plan price. | Confirmed results are cached 14 days |
| One pass over 1,000 | $10.001,000-credit pack at $10.00 per 1,000 | $9.00one month of Starter, 2,500 emails a month |
| One pass over 10,000 | $70.0010,000-credit pack at $7.00 per 1,000 | $15.00a one-time pack of 10,000 email checks that never expires |
| One pass over 50,000 | $275.0050,000-credit pack at $5.50 per 1,000 | $39.00one month of Pro |
| One pass over 100,000 | $500.00100,000-credit pack at $5.00 per 1,000 | $39.00one month of Pro |
| One pass over 1,000,000 | $2999.001,000,000-credit pack at $3.00 per 1,000 | $39.00one month of Pro: the first 100,000 checks a month at full speed, then slower, never cut off |
Each cost is for one pass, on the cheapest published route. Where a vendor sells both packs and a subscription, the cheaper is shown; a figure of “Not published” means the plan for that size was not on the page we read. See the cost calculator for your own pattern.
Cost at a steady monthly volume
The same volume every month, on each side’s cheapest route that covers it within the month.
| Per month | Kickbox | SimpleVerifier |
|---|---|---|
| 10,000 | $70.00Pay as you go: 10,000-credit pack at $7.00 per 1,000 | $39.00Pro plan, never cut off: the first 100,000 emails a month run at full speed |
| 50,000 | $275.00Pay as you go: 50,000-credit pack at $5.50 per 1,000 | $39.00Pro plan, never cut off: the first 100,000 emails a month run at full speed |
| 100,000 | $500.00Pay as you go: 100,000-credit pack at $5.00 per 1,000 | $39.00Pro plan, never cut off: the first 100,000 emails a month run at full speed |
| 1,000,000 | $2999.00Pay as you go: 1,000,000-credit pack at $3.00 per 1,000 | $249.00Agency plan, never cut off: the first 750,000 emails a month run at full speed, the rest in a slower lane |
Who should pick which
Pick Kickbox if
you need a vendor with published SOC II certification or deliverability consulting from the same team.
Pick SimpleVerifier if
you clean lists every month or in large batches and want the cost to stay flat.
Where Kickbox is better
- Kickbox says it is SOC II certified and GDPR-compliant, with verification and support in both the US and the EU.
- Unknown results are refunded as credits.
- It sells deliverability consulting and an Email Threat Score product beside verification.
- Packs start at $5 for 500, which suits a single small list.
Where SimpleVerifier is better
- Pro is $39 a month, never cut off, with 100,000 a month at full speed; 10,000 addresses at Kickbox are a $70 pack and 100,000 are $500.
- Confirmed results are cached for 14 days, so overlapping re-checks are not billed again.
- Phone validation and an unmetered email finder are included.
Kickbox without paying: 100 verifications
Facts checked October 23, 2026: Kickbox pricing
See it ranked with the rest: Email verification tools compared by price
Common questions
- Is SimpleVerifier cheaper than Kickbox?
- It depends on volume and how often you re-check. 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 (read from kickbox.com on November 3, 2026). SimpleVerifier is $9 a month for 2,500 emails a month, and Pro is $39 a month with 100,000 a month at full speed. The cost table on this page prices the same list sizes on both.
- When should I choose Kickbox instead of SimpleVerifier?
- Choose Kickbox if you need a vendor with published SOC II certification or deliverability consulting from the same team.
- When should I choose SimpleVerifier instead of Kickbox?
- Choose SimpleVerifier if you clean lists every month or in large batches and want the cost to stay flat.
- Is one more accurate than the other?
- We have not benchmarked Kickbox against SimpleVerifier, so this page compares published prices and features only and makes no accuracy claim. Run the same sample, including addresses you know are dead, through both and compare. Anything SimpleVerifier cannot confirm is returned as risky, never valid.
- Can I test SimpleVerifier before paying?
- Yes. Sign in with Google and the first 100 email checks are free, no card.
Test both on your own list
The first 100 checks are free with a Google sign-in, no card. Plans then start at $9 a month. Cancel anytime.