ZapBounce vs Clearout
Clearout attacks the hardest part of this problem directly. They try to resolve accept-all domains rather than labeling them and moving on, and they hold ISO and SOC 2 Type II certification, which we do not. The question this page is really asking is whether your list is the kind of list that work pays off on.
| ZapBounce | Clearout | |
|---|---|---|
| Accuracy figure published | Coverage and accuracy together, once measured | 99.73% |
| 1,000 addresses | $5 | Not listed on the pricing page |
| 10,000 addresses | $25 | Not listed |
| 100,000 addresses | $139 | Not listed |
| Free tier | 100 a month, no card | 100 credits, no card |
| Credit expiry | Never | Credits never expire and roll over |
| Billed for unknowns | No | Not stated |
Clearout figures read from their own pricing page in September 2026.
How Clearout prices it
Not published on their pricing page, which is unusual for a vendor this established. Their 99.73% is the headline instead, and it is a claim about returned verdicts with the denominator left out.
Where Clearout is the better choice
Stated plainly, because a comparison page that never concedes anything is not worth reading.
- They genuinely try to resolve catch-all addresses, which is the hardest part of this problem and where a large share of B2B lists sit.
- ISO and SOC 2 Type II certification, which we do not hold.
- Form Guard checks addresses at the signup form in real time.
Where we differ
What ZapBounce does differently
- Their 99.73% is a claim about returned verdicts. We publish the denominator alongside it.
- Where a catch-all cannot be resolved we say so rather than estimating.
What you give up leaving Clearout
- They genuinely try to resolve catch-all addresses, which is the hardest part of this problem and where a large share of B2B lists sit.
- ISO and SOC 2 Type II certification, which we do not hold.
- Form Guard checks addresses at the signup form in real time.
Moving off Clearout
Not usually price. Clearout attempts catch-all resolution, which is the hardest part of this problem, and we do not attempt it. Those who leave tend to have discovered their list is mostly Gmail and Outlook, where the resolution work they are paying for changes nothing.
Check Form Guard first. If it is gating your signup form, that is a live dependency on a running service and the replacement has to be in place before you switch, not after.
What Clearout cannot do either
Questions people ask about Clearout
Does Clearout's catch-all resolution earn its price?
It depends entirely on your domain mix. Export your list, count the addresses on accept-all domains, and look at the share. On a list that is mostly Gmail and Outlook, the answer is usually no. On a real B2B list it can be the most valuable thing you buy.
You do not hold ISO or SOC 2. Is that a problem?
It is if your procurement asks for it, and we will not pretend otherwise. Clearout has both audits and we have neither.
What is missing from the 99.73% claim?
The share of the test list that produced a definitive verdict. Once you know that, the percentage tells you something useful. Without it, it describes the addresses that were never hard.
Is ZapBounce cheaper than Clearout?
At 100,000 addresses we list $139 and they list Not listed. Compare the per-address rate rather than the headline, and check what each side does with unknowns.
Can I test both before deciding?
Yes, and you should. Run the same sample of a few thousand addresses through each and compare how many came back unresolved. That difference matters more than either accuracy claim.
Count the accept-all domains in your own list before deciding. That single number settles this comparison better than either of our claims.
Run the same sample through us and Clearout
100 free checks a month, no card, and the unknowns come back labeled.