The Proofy Insider’s Guide
Everything we know about Proofy in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Proofy
The Insider’s Guide
Email verification by bulk upload, API or one-off check
Every plan, grade, refund rule and rival among email verification and deliverability tools, read from Proofy’s own pages.
Made by Proofy · checked Nov 12, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Proofy’s own pages, its app-store listings and our grades. Every fact in it is on Proofy’s page too, where it is kept up to date. Checked Nov 12, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.4
GPA, above 18 of the 38 other email verification and deliverability tools we grade
Proofy verifies email addresses without sending a message, labeling each as valid, invalid, risky or unknown and flagging disposable, catch-all and role-based ones. Lists go in as CSV or TXT files, and a REST API, bulk and batch endpoints, a JavaScript widget and webhooks cover automated use. Credits do not expire and duplicate or unknown results are not charged.
To get you started, here are 8 things to know about Proofy, taken from its own pages and our grades.
You upload a list or wire up the API, a few steps.
- 1
Best for cheap email list checks by the credit
Proofy verifies email lists with credits that never expire and does not charge for unknowns, starting at $5 for 5,000.
- 2
What it costs
Paid plans start at $5 one-time for 5,000 credits.
- 3
It runs on Web
Web.
- 4
Bulk verification
Upload a .txt or .csv file up to 65 MB; result columns are added to the original file and the data layout is kept.
- 5
API, widget and webhooks
Single, bulk and batch API endpoints plus a JavaScript widget and webhook support, documented at docs.proofy.io.
- 6
Risk and type detection
Flags disposable, catch-all, role-based and mailbox-full addresses and shows the mail provider behind each one.
- 7
A 2.4 GPA, above 18 of 38
That is against the other email verification and deliverability tools we grade, on value, the free plan, features, ease of use and platforms.
- 8
Keep it
Nothing Proofy does is plain enough to make in a weekend. The 5 things listed below take a company.
Proofy at a glance
- Pricing
- Paid, from $5 one-time for 5,000 credits
- Free plan
- No
- Free trial
- None stated
- Runs on
- Web
- Made by
- Proofy
- Category
- Email Verification & Deliverability
- Our grade
- 2.4 GPA, fair
The report card
Best for cheap email list checks by the credit
Proofy verifies email lists with credits that never expire and does not charge for unknowns, starting at $5 for 5,000. Only that $5 trial pack has a price on the page, there is no free plan, and risky and unknown results still come back for catch-all servers.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | B | $5 for 5,000 credits, under the $8 middle for one-time prices in the category. The page shows no price for larger packs or subscriptions. |
| Free plan and trial | D | No free plan and no free trial. There is a free single-address checker, but a list costs the $5 pack. |
| Features | B | Bulk verification, an API, a widget and webhooks, with risk and type detection. Catch-all servers can still return Risky or Unknown. |
| Ease of use | C | No store rating on record. You upload a list or wire up the API, a few steps. |
| Platforms and integrations | B | Web dashboard and API, with a widget and webhooks. No integrations or apps are listed. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Proofy is for
- Fits if you have one list to clean and want to pay about $5
- Works for developers who want an API and a sign-up widget
Who it is not for
- Tight if you want to try it free, as only a single-address checker is free
- Watch out: larger packs and subscriptions showed no prices when the page was read
- Watch out: the vendor says verification does not guarantee delivery
- Watch out: there is no desktop or mobile app
Good to know
Good for
- Cheap one-off tests of a list before committing to volume
- Teams that want credits that never expire
Worth knowing
- The only price shown on the pricing page is the $5 trial pack; larger packages and subscriptions are set with a volume selector that showed no prices when read.
- Catch-all and restricted mail servers can come back Risky or Unknown, and the vendor says verification does not guarantee delivery.
- Web dashboard and API only; there is no desktop or mobile app.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$5 one-time
To start
Proofy is a paid product, starting at $5 one-time for 5,000 credits.
The page shows no price for larger packs or subscriptions.
Trial
$5
one-time, for 5,000 credits used as you go
A starter pack for new users with no subscription. Credits never expire.
Read from proofy.io on Nov 12, 2026.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Email verification by bulk upload, API or one-off check. Here is what it does, as its own site describes it, and what it covers: public API, email verification.
Bulk verification, an API, a widget and webhooks, with risk and type detection.
- Bulk verification
- Upload a .txt or .csv file up to 65 MB; result columns are added to the original file and the data layout is kept.
- API, widget and webhooks
- Single, bulk and batch API endpoints plus a JavaScript widget and webhook support, documented at docs.proofy.io.
- Risk and type detection
- Flags disposable, catch-all, role-based and mailbox-full addresses and shows the mail provider behind each one.
- Free single checker
- A free checker takes one address at a time with no file upload.
- Credit rules
- One credit verifies one email; duplicates and unknown results are not charged, and credits never expire.
Where it runs
- Web
What it works with
Its own pages name no integrations.
Proofy is made by Proofy.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
18/38
Other email verification and deliverability tools it is graded above
Proofy's GPA of 2.4 is higher than 18 of the 38 other email verification and deliverability tools we grade, and level with 12.
It stands best on value for money (B, above 25 of 38) and worst on free plan and trial (D, above 3).
Each grade against the category
Every bar is all 39 email verification and deliverability tools we grade, cut by the letter each got. Proofy’s own letter is outlined.
- BValue for moneyAbove 25 of 38
- DFree plan and trialAbove 3 of 38
- BFeaturesAbove 24 of 38
- CEase of useAbove 1 of 38
- BPlatforms and integrationsAbove 14 of 38
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
Nothing Proofy does is plain enough to make in a weekend. The 5 things listed below take a company.
It costs $5, paid once.
What you could not
- Checking that an address exists without writing to it.
- An API that other software can build on.
- Hooks into the device itself: widgets.
- What a company asks for before it lets staff use something: roles and permissions.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Proofy’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
ZeroBounce, NeverBounce, Emailable, MillionVerifier and DeBounce
The 5 tools Proofy is most often weighed against, with where each one differs from it.
- 2.4GPA
ZeroBounce
Free plan · from $39 one-time
Email list verification with warm-up and DMARC monitoring in one plan.
- ZeroBounce has a free plan. Proofy does not.
- Only ZeroBounce lists an iOS app.
- ZeroBounce also covers inbox warm-up and dMARC.
- 2.4GPA
NeverBounce
Free trial · from $8 one-time
Email list cleaning and real-time verification, now part of ZoomInfo.
- 2.4GPA
Emailable
Free trial · from $38 one-time
Email list verification with inbox reports and blacklist monitoring.
- 2.4GPA
MillionVerifier
Free trial · from $39 one-time
Low-cost bulk email verification with credits that never expire.
- 2.6GPA
DeBounce
Free trial · from $15 one-time
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
11
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Proofy free?
No. Proofy is a paid product, starting at $5 one-time for 5,000 credits.
How much does Proofy cost?
Proofy lists one plan. Trial: $5 one-time, for 5,000 credits used as you go.
What platforms does Proofy work on?
Proofy is available on Web.
Does Proofy have an Android app?
No Android app was listed when its pages were read on Nov 12, 2026. Proofy is listed for Web.
Does Proofy have an iPhone app?
No iPhone app was listed when its pages were read on Nov 12, 2026. Proofy is listed for Web.
Is Proofy open source?
Proofy is not described as open source on its own site, as read on Nov 12, 2026.
Does Proofy have an API?
Yes. Proofy offers a public API, according to its own site.
Who makes Proofy?
Proofy is made by a company of the same name.
What are the alternatives to Proofy?
The closest alternatives to Proofy in our directory are ZeroBounce, NeverBounce, Emailable, MillionVerifier and DeBounce.
How does Proofy compare with other email verification and deliverability tools?
Proofy's GPA of 2.4 is higher than 18 of the 38 other email verification and deliverability tools we grade, and level with 12.
Could I make my own version of Proofy?
Nothing Proofy does is plain enough to make in a weekend. The 5 things listed below take a company.
Where this guide comes from
The prices, plans, platforms and features were read from Proofy’s own pages on Nov 12, 2026, and the grades were given on Nov 12, 2026. Graded from this listing, whose facts were read from Proofy's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Proofy. Prices change, so check proofy.io before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
5,038
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
5,038
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Proofy, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/proofy
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Proofy: The Insider's Guide", checked Nov 12, 2026. https://toolgpa.com/tools/proofy
Know someone choosing between email verification and deliverability tools?
Send them this guide: toolgpa.com/tools/proofy/guide
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See our other guides
The best-graded email verification and deliverability tools after Proofy, each with an Insider's Guide of its own.
- Email Verification & Deliverability Insider's GuideEvery one of the 40 email verification and deliverability tools we grade, compared
- QuickEmailVerification Insider's GuideBulk email list cleaning and a real-time verification API3.0 GPA
- Mail-Tester Insider's GuideSend an email to a test address and get a spam score out of 102.8 GPA
- Reoon Email Verifier Insider's GuideBulk and real-time email verification with refunds on unknowns2.8 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Proofy’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Proofy is a trademark of its owner, and this guide is not made, paid for or approved by Proofy. Prices and plans change: check proofy.io before you buy.