ZeroBounce Alternatives: What You Pay at 10,000 and 100,000 Checks a Month

If you verify the same lists every month, a flat plan usually costs less than ZeroBounce. If you verify rarely or want a one-off purchase, ZeroBounce is a reasonable pick. ZeroBounce is a well-known verifier with a long product list. This post puts its published prices next to a flat plan at three volumes, and says plainly where ZeroBounce is the better answer.

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What ZeroBounce charges

From the ZeroBounce pricing page, read on 9 November 2026:

Option	Price	Notes
Free	$0 a month	100 validation credits that refill monthly, plus a few tests and 10 email finder credits
Pay as you go	From $39	Starts at 2,000 email addresses; add credits as needed
ZeroBounce ONE	From $99 a month	Minimum of 10,000 credits; the page shows an annual toggle labelled "Save 20%"

The page also says:

• One credit is used per address validated, and one per address scored with AI Scoring.
• Unknown results cost nothing, and neither do duplicate addresses.
• Scoring an address with Activity Data costs one additional credit.
• Email Finder uses 20 credits per successful query.
• Credits never expire while you have an active ONE subscription. Without a subscription, expiry rules may apply.
• Subscribers get 15% off pay-as-you-go credits, and the FAQ says a subscription can save up to 18% against pay-as-you-go.

The page does not list the full per-credit tiers for larger pay-as-you-go packs, so we do not guess them. Check the calculator on their page for your exact volume.

What that means at three volumes

Monthly volume	ZeroBounce on the page's numbers	SimpleVerifier Pro
2,000 checks	$39 pay-as-you-go, one-off	$39 a month
10,000 checks	From $99 a month on ONE (10,000-credit minimum)	$39 a month
100,000 checks	Larger plan; see their calculator	$39 a month, first 100,000 at full speed

At 2,000 checks, the price is the same. The difference is what happens next: if you need 5,000 or 50,000 the following month, Pro is still $39, with the first 100,000 checks a month at full speed. If you never need more than 2,000 and only once or twice a year, ZeroBounce's one-off purchase means you do not pay for months you do not use.

The email list decay calculator shows how often a list needs a re-check, which is the part of the volume most people forget to count.

When to stay with ZeroBounce

Stay if:

• You verify a few times a year. A pay-as-you-go pack fits, and nothing renews.
• You want its other tests in the same account. The free plan lists an inbox test, an email server test and a blacklist monitor.
• You rely on its extra scoring. AI Scoring and Activity Data are paid add-ons per address. We do not have a like-for-like feature, so do not switch on price alone.
• Your team already uses it and the integrations work.

When an alternative fits better

Your situation	Why a flat plan may fit better
You verify every month	A flat price removes the per-pack decision
Your lists are 10,000 or more	$99 a month is the entry price for ONE on the page
You re-verify before every campaign	Each re-check spends credits on the same addresses
You run an agency	Client files arrive in batches of tens of thousands

We are not cheaper at every size. Under a few thousand checks a year, a single ZeroBounce pack can cost less over twelve months than a subscription.

What a flat verification plan includes

SimpleVerifier Pro is $39 a month (or $390 a year). Email verification is the first 100,000 checks a month at full speed, then slower, never cut off.

Per the pricing page, Pro also includes:

• CSV upload, up to 100,000 rows per file
• Real SMTP mailbox checks, not just syntax
• Catch-all, disposable and role-address detection
• Export valid, risky or invalid separately
• An email finder (name and company to a verified address) and website enrichment
• API: 10,000 calls a month included, then $1.50 per 1,000

Only email verification has the 100,000 full-speed fair-use line. The finder and API are not unlimited.

How to compare results fairly

1. Pull 300 to 500 random rows with the email list sampler.
2. Verify them in ZeroBounce and in SimpleVerifier on the same day.
3. Line them up with compare email lists.
4. Look at the disagreements, especially valid in one and risky in the other.

We do not publish accuracy figures for other tools, and we do not publish one for ours. The sample on your own data is the number that matters. Our deeper pieces on ZeroBounce are ZeroBounce pricing explained, ZeroBounce vs NeverBounce and ZeroBounce alternatives for small lists.

What about catch-all domains?

A catch-all domain accepts every address at the SMTP step, so a standard check cannot confirm a single mailbox there. That is true for every verifier. Treat catch-all rows as their own group: send to them slower and watch the bounce rate. See what to do with catch-all emails.

Switching without a gap

1. Export your last verified list from ZeroBounce, keeping its result column.
2. Merge it with newer rows and remove repeats with the duplicate email remover.
3. Verify the combined file at /verify.
4. Split by result: valid to the campaign, risky to a slower send, invalid to suppression.
5. Keep a source column so you can find which list source caused bounces.

Questions to ask before you switch

• How many checks do I run in a year, re-checks included? Divide by 12.
• Do I use anything besides validation? If you use its other tests, keep them.
• Do unused credits matter to me? If you verify rarely, they do.
• Do I need an API? Compare included calls and the cost past them.

Quick answers

• Is ZeroBounce cheaper than SimpleVerifier? For a one-off 2,000 checks, it costs the same. For monthly volume above that, a flat $39 plan costs less.
• Can I use both? Yes, and some teams do: one for scoring, one for bulk.
• Does either guarantee zero bounces? No. Mailboxes can fill or close after a check.

Try it on your own list

Upload the file at /verify. The first 100 checks are free with a Google sign-in, no card.

Pro, $39 a month: Unlimited email verification.* Never metered, never cut off. See pricing.

*Fair use: the first 100,000 checks a month at full speed, then slower, never cut off.