Email Verification Credits vs a Monthly Plan: How to Work Out Which Costs Less

To compare email verification credits with a monthly plan, work out the cost per credit, find the volume at which that cost equals the plan price, and see which side of it your monthly volume falls on. Below that volume credits cost less; above it, up to what the plan covers, the plan costs less. The arithmetic is short, but the inputs are easy to get wrong, and a few things the sum leaves out can change the answer. This post goes through it with made-up prices so you can see the mechanics before you plug in real ones.

Compare credits with a monthly plan →

The two models

Credits. You buy a pack that holds a set number of checks, spend them as you verify, and buy another when they run low. You pay for what you use, plus whatever is left over if the pack is bigger than you needed. Our post on how email verification credits work covers what counts as a spent credit.

A monthly plan. You pay a fixed price each month for an allowance of checks, or for a larger allowance with different terms. The price is the same in a month when you verify nothing and in a month when you verify the whole allowance.

Neither is better in general. Each is cheaper at a certain volume, and your volume decides it. For the wider decision, including one-off purchases, see one-time verification against a subscription.

The sum, with made-up numbers

These prices are invented to show the working. They are not any vendor's prices.

Say a pack costs $50 and holds 5,000 checks. That is $0.01 per check.

Say a monthly plan costs $39 and covers 100,000 checks a month.

The break-even is the plan price divided by the cost per check: $39 divided by $0.01 is 3,900 checks a month.

• At 2,000 checks a month, credits cost $20. The plan costs $39. Credits are cheaper.
• At 3,900 checks, both cost $39. They are equal.
• At 8,000 checks, credits cost $80. The plan costs $39. The plan is cheaper.
• At 150,000 checks, the plan's allowance is exceeded. What happens next depends on the plan's terms, which is why the calculator has a field for the price per extra check. Leave it empty if the plan has none, and volumes above the allowance are shown as over the allowance.

That is the entire model. Everything else is about whether the inputs are right.

Where the inputs come from

Open the pricing pages of the options you are comparing and note, for each:

1. The price of a pack, and how many checks it holds.
2. The plan's price and its monthly allowance.
3. Whether extra checks over the allowance cost anything, and how much.
4. How many checks you need in a typical month.

Always take the numbers from the vendor's own page on the day you compare. Prices move, and this post names no vendor price because any figure we printed could be out of date by the time you read it. The same goes for the calculator: it holds no prices, so it never shows an old one. If you want several vendors side by side, our email verification pricing index links to the individual pricing explanations.

What the sum leaves out

The break-even sum is deliberately plain. Real decisions include more:

• Expiry. Some credits expire after a period. If you buy a pack and use half before it expires, your real cost per used check is double the printed one.
• Rollover. Some plans carry unused checks forward and some do not. A plan that rolls over is worth more than the same plan that does not.
• Taxes. Enter prices as you will actually pay them, or add tax afterwards.
• Annual billing discounts. A vendor may price a year at less than twelve months. Our post on annual against monthly plans covers what to check. Enter the effective monthly price if you will take the annual deal.
• Minimum purchases. If the smallest pack is bigger than a month's need, you hold unused credits.
• Speed and limits. A plan may run slowly past a point, or cap a single upload. A cheaper option that takes days is not equal to one that takes minutes.
• Quality. The sum says nothing about how good the results are. A cheaper check that returns less useful answers is not cheaper in any sense that matters.

If any of these applies, adjust the inputs before you compare, for example by dividing the pack price by the checks you expect to use, not the checks it holds.

Your volume is not the same every month

Cold email volume comes in bursts. You may verify 40,000 addresses one month, nothing the next two, and 5,000 after that. An average hides that, and it matters because the two models respond to bursts differently.

• Credits suit lumpy volume. You buy when you need them. A quiet month costs nothing.
• A plan suits steady volume. Its price is the same either way, so you want to be using most of the allowance every month.

Price a quiet month, a typical month and a busy month, and look at the total over a year, not at one month. The calculator shows a quarter, half, double and four times your volume so you can see where each option wins, and a 12-month cost of the cheaper option, which assumes the same volume every month, so treat that as a rough guide.

How often you verify also changes your number. Checking the same list again costs again with credits. Our post on how often to verify an email list covers re-check intervals, and the email list cleaning frequency calculator turns that into a monthly figure. Enter the volume that includes the re-checks, not just the new addresses.

Where a competitor may be cheaper

Plainly: for a small list checked rarely, a credit pack from another provider can cost less than any subscription, SimpleVerifier's included. If you verify a few thousand addresses once a quarter, paying monthly for the months in between is the wrong shape. Do the sum, and if credits win at your volume, buy credits.

A plan tends to win when volume is steady and large, when you re-check lists regularly, or when you want to stop counting. With SimpleVerifier Pro at $39 a month, the first 100,000 checks a month run at full speed, then slower, never cut off. There is no meter running on a big upload, and nothing stops a campaign halfway because a balance ran out. That is a different kind of value from a lower price per check, and whether it matters depends on how you work. The email verification cost calculator shows what a given list size costs under typical pricing models.

The cost of not verifying

The comparison above assumes you verify. The other option is to skip it and absorb the bounces. A bounce costs you the lead, and enough of them cost you sending reputation, which is harder to price. Our post on estimating your bounce rate before sending helps you think about it for a given list. This is not a reason to overpay; it is a reason to run the sum, pick the cheaper model and verify.

Reading the result

When you have the numbers:

1. Look at the break-even volume. If your typical month is well below it, credits probably fit. If it is well above, a plan probably does.
2. Check the neighbouring volumes. If your quiet months fall on one side and your busy months on the other, you have a real choice, and the lumpy-volume point above applies.
3. Apply what the sum leaves out. Expiry and minimum purchases tilt towards plans or smaller packs, depending on the terms. Do not skip this step.
4. Decide and revisit. Volume changes. Redo the sum when your sending changes.

Limits

• It compares two options at the prices you enter. It does not know whether either price is current.
• It leaves out expiry, rollover, taxes and annual discounts.
• It assumes the same volume every month when it gives the 12-month cost.
• It says nothing about the quality or speed of the verification itself.
• Nothing is sent to SimpleVerifier. The sum is done in your browser.

When you have chosen, verify the list: upload it at /verify and remove what comes back invalid before it reaches a sending inbox.