ZapBounce vs Proofy
Proofy writes its own denominator into its accuracy claim. The page says designed for up to 99% on conclusive Valid and Invalid results, and names catch-all and restricted servers as the cases that come back Risky or Unknown. That is most of our argument, printed on a competitor's pricing page, and they are cheaper than us at volume too.
| ZapBounce | Proofy | |
|---|---|---|
| Accuracy figure published | Coverage and accuracy together, once measured | Designed for up to 99% on conclusive results, in their own hedged words |
| 1,000 addresses | $5 | $5 |
| 10,000 addresses | $25 | $18 |
| 100,000 addresses | $139 | $89 |
| Free tier | 100 a month, no card | No free credits; a $5 trial gives 5,000 checks to new users |
| Credit expiry | Never | Credits never expire, and survive cancellation |
| Billed for unknowns | No | No |
Proofy figures read from their own pricing page in September 2026.
How Proofy prices it
$5 for a thousand, $18 for ten thousand, $89 for a hundred thousand, with a 15% discount on the monthly subscription version of the same tiers. New users get 5,000 checks for $5 as a one-off, which is the best value entry in this category. Credits never expire and survive cancellation.
Where Proofy is the better choice
Stated plainly, because a comparison page that never concedes anything is not worth reading.
- They never charge for unknowns or duplicates, printed on their own pricing page rather than buried in terms. That is the rule this category should have adopted years ago.
- Their accuracy wording hedges itself: designed for up to 99% on conclusive Valid and Invalid results, with catch-all and restricted servers named as returning Risky or Unknown. A vendor writing the denominator into its own claim is rare enough to credit.
- Credits survive cancellation and remain available indefinitely, which goes further than never expiring.
- At a hundred thousand addresses they list $89 against our $139. They are cheaper and we are not going to hide the row.
Where we differ
What ZapBounce does differently
- Our entry is $5 for 1,000 as a standing price. Theirs is a $5 trial of 5,000 for new users, after which 1,000 costs $5 and 5,000 costs $10.
- We report coverage as a headline number rather than as a caveat attached to an accuracy claim.
- We publish a free tier of 100 credits a month with no card. They start at the paid trial.
What you give up leaving Proofy
- They never charge for unknowns or duplicates, printed on their own pricing page rather than buried in terms. That is the rule this category should have adopted years ago.
- Their accuracy wording hedges itself: designed for up to 99% on conclusive Valid and Invalid results, with catch-all and restricted servers named as returning Risky or Unknown. A vendor writing the denominator into its own claim is rare enough to credit.
- Credits survive cancellation and remain available indefinitely, which goes further than never expiring.
- At a hundred thousand addresses they list $89 against our $139. They are cheaper and we are not going to hide the row.
Moving off Proofy
Not price, and that is worth stating plainly: at a hundred thousand addresses they are $89 and we are $139. If the deciding factor is the per-address rate, this comparison does not go our way.
Simple. The one thing to carry across is the expectation about unknowns, because Proofy sets a good one. Any vendor you move to should refuse to bill non-answers in writing, and most of this category still will not.
What Proofy cannot do either
Questions people ask about Proofy
Proofy is cheaper. Why would we move?
On price alone you would not, and $89 against $139 at a hundred thousand is the honest number. The arguments left are the free tier, which is 100 credits a month with no card on our side against their paid trial, and whether the unresolved share is reported as a headline or as a caveat.
Is their accuracy wording better than a flat percentage?
Considerably. Designed for up to 99% on conclusive results, with catch-all and restricted servers named as the exceptions, tells you what the number excludes. A bare 99.9% does not, and most of this market prints the bare version.
Do you both refuse to bill unknowns?
Yes, and they were doing it before we existed. It should be standard across this category by now and it is not.
Is ZapBounce cheaper than Proofy?
At 100,000 addresses we list $139 and they list $89. 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.
Proofy undercuts us at volume and hedges its accuracy claim properly. We lose the price row, and we match them on refusing to bill unknowns.
Run the same sample through us and Proofy
100 free checks a month, no card, and the unknowns come back labeled.