TL;DR
- NeverBounce is cheaper or equal at every size: $40 vs $40 at 5K, $50 vs $70 at 10K, $400 vs $500 at 100K, $2,500 vs $2,999 at 1M.
- NeverBounce offers monthly Growth plans; Kickbox is pay-as-you-go only.
- Kickbox does not charge for unknowns; NeverBounce's policy isn't stated.
- NeverBounce pay-as-you-go credits expire after 12 months; check Kickbox's terms for yours.
Pay-as-you-go prices
| Emails | NeverBounce | Kickbox | Mail Exchange |
|---|---|---|---|
| 5,000 | $40 ($0.0080) | $40 ($0.0080) | $29 ($0.0058) |
| 10,000 | $50 ($0.0050) | $70 ($0.0070) | $49 ($0.0049) |
| 100,000 | $400 ($0.0040) | $500 ($0.0050) | $299 ($0.0030) |
| 1,000,000 | $2,500 ($0.0025) | $2,999 ($0.0030) | $1,699 ($0.0017) |
Sources: NeverBounce pricing page and Kickbox pricing page, checked 2026-10-18.
Terms
| NeverBounce | Kickbox | |
|---|---|---|
| Free | Free test credits (amount not stated) | 100 verifications |
| Subscription | Growth from $49/month for 10K | None |
| Unknown results | Not stated officially | Not charged |
| Credit expiry | 12 months (pay-as-you-go) | Check terms |
| Integrations | 80+ advertised | Common CRM and marketing tools |
| Compliance (stated) | Check NeverBounce's page | SOC 2, GDPR |
Which to choose
- Cheapest of the two: NeverBounce, especially on its Growth plan at monthly volume.
- Simplest, fair unknown handling: Kickbox.
- Lots of integrations: NeverBounce.
Where Mail Exchange fits
Mail Exchange pay-as-you-go packs are 28% below both at 5K, 40% below Kickbox at 100K and 25% below NeverBounce at 100K. NeverBounce's subscription is cheaper than ours from about 50,000 a month; see Mail Exchange vs NeverBounce and vs Kickbox.
What the price gap means in dollars
| Volume | NeverBounce | Kickbox | Difference |
|---|---|---|---|
| 10,000 | $50 | $70 | $20 |
| 100,000 | $400 | $500 | $100 |
| 1,000,000 | $2,500 | $2,999 | $499 |
On pay-as-you-go NeverBounce is never more expensive at these sizes; the gap grows with volume. NeverBounce's Growth subscription widens it further at steady monthly volume.
What to test
- Verify the same 500 addresses in both and compare the unknown share: Kickbox doesn't charge for unknowns, NeverBounce's policy isn't stated.
- Check how each treats catch-all domains in your list.
- Compare turnaround for your list size.
- Ask each about credit expiry for the pack you intend to buy.
FAQ
Is NeverBounce cheaper than Kickbox?
Cheaper or equal at every pay-as-you-go size we checked on 2026-10-18, and it also sells monthly plans.
Does Kickbox charge for unknowns?
No.
Do NeverBounce credits expire?
Pay-as-you-go credits expire 12 months after purchase.
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