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Terms of Service

Last updated: 12 October 2026

About these terms

These terms apply when you use SimpleVerifier (simpleverifier.com), including the website, the web app, the API and the Google Sheets add-on. In these terms, “SimpleVerifier”, “we” and “us” mean the operator of SimpleVerifier, and “you” means the person or business using it. By creating an account, subscribing or using the service, you agree to these terms. If you use SimpleVerifier for a business, you confirm you can accept these terms for it.

Our Privacy Policy explains how we handle personal data and forms part of these terms.

The service

SimpleVerifier checks email addresses and phone numbers. Email verification uses syntax checks, DNS lookups and a conversation with the recipient’s mail server; no email is sent. The service also includes an email finder, website enrichment, lead search, phone number validation and, on the Email + Phone plan, live carrier lookups. Features may change as the product develops; what each plan includes today is listed on the pricing page.

Your account

You sign in with your Google account. You are responsible for keeping that account secure and for everything done through your SimpleVerifier account. Tell us at support@simpleverifier.com if you think someone else has used it. You must give us accurate information and be old enough to enter a binding contract where you live.

Subscriptions and billing

  • Pro: $29.99 a month. Unlimited email verification, finder and phone format checks.
  • Email + Phone: $49.99 a month. Everything in Pro, plus live carrier lookups for your phone lists.

Payments are taken by Stripe. Prices are in US dollars and do not include any taxes that apply where you are. Subscriptions are billed monthly in advance and renew automatically each month on the same date until you cancel. Your invoices are under Billing in your dashboard.

If we change a price, we will tell you before it applies to your next renewal, and you can cancel before then. If a payment fails, your access to paid features may stop until the subscription is paid.

Cancellation and refunds

You can cancel at any time from Billing in your dashboard. There is no contract and no cancellation fee. When you cancel, your subscription is not renewed, and you keep access until the end of the period you have already paid for.

Fees already paid are not refunded, including for a partly used month, except where the law requires a refund.

Acceptable use

You must not use SimpleVerifier to:

  • send spam, or prepare lists for sending unsolicited bulk email or text messages;
  • verify or find addresses or numbers you have no lawful basis to contact, or break any anti-spam, privacy or data protection law, such as CAN-SPAM, the TCPA, the GDPR or the UK GDPR;
  • harass, track or harm anyone;
  • abuse the API, get around its limits, or try to overload, disrupt or probe the service or the mail servers it connects to;
  • share, sell or resell your API keys or your access, or offer the service to others as your own;
  • try to get into accounts, systems or data that are not yours;
  • copy, scrape or reverse engineer the service, except where the law allows it.

You are responsible for having a lawful basis to process the lists you upload and to contact the people on them.

Fair use and rate limits

Plans have no monthly cap on email verifications, but the service has published limits so it stays fast and reliable for everyone:

  • Email verification runs at up to 45 addresses a minute per account. Larger lists queue rather than fail.
  • CSV uploads can have up to 100,000 rows.
  • Lead search has a fair-use limit of 10,000 records a month.
  • Each API key can make up to 120 calls a minute.
  • The Email + Phone plan includes 5,000 live carrier lookups a month. Failed lookups do not count against the allowance.

If an account’s use threatens the service for other customers, we may slow it down or ask you to change how you use it.

API keys

You can create API keys in your dashboard. Keep them secret: do not put them in public code, client side apps or shared documents. You are responsible for all use of your keys. If a key may have been exposed, delete it in your dashboard and create a new one. A key only works while your subscription is active.

Accuracy of results

Verification results are a best judgement from the responses of other systems, not a guarantee. Mail servers can be configured to hide whether a mailbox exists, can change their answer later, and can accept mail for any address. That is why results are not only valid or invalid: an address whose mailbox could not be confirmed is returned as risky, never as valid, and some tools, such as the catch-all checker and the email permutator, can return unknown when a mail server gives no usable answer.

Phone checks tell you whether a number is correctly formed and, with a live lookup, its line type and carrier. They do not confirm that a number is in service, who owns it, or that a message will be delivered. A valid result is not a promise that an email or message will reach anyone, and you decide what to do with each result.

Your data

You own the lists you upload and the results we produce for you. You give us permission to process them only to provide the service to you, as described in the Privacy Policy. We do not sell your lists or use them for marketing.

Your verification jobs and results files are kept while your account is active, so you can download them from your history, and are deleted when you ask us to delete them. Confirmed results are also cached by address for 14 days so a repeat check is instant. See how long we keep it for details.

Third-party services

SimpleVerifier relies on other providers, including Google for sign-in and the Sheets add-on, Stripe for payments, and Telnyx for live carrier lookups. Your use of those services is also subject to their own terms. We are not responsible for their availability or for third-party mail servers and networks that a check depends on. The providers we use are listed in the Privacy Policy.

Availability and changes to the service

We work to keep SimpleVerifier running, but we do not promise any level of uptime. The service may be unavailable from time to time for maintenance, updates or reasons outside our control. We may change, add or remove features. If we remove something central to a paid plan, we will tell you, and you can cancel.

Disclaimer and limitation of liability

The service is provided “as is” and “as available”. To the extent the law allows, we make no warranties beyond those stated in these terms, including any implied warranty of merchantability, fitness for a particular purpose or that the service will be error free.

To the extent the law allows, we are not liable for any indirect or consequential loss, or for lost profits, revenue, data, sender reputation or business opportunities, arising from your use of the service. Our total liability for all claims relating to the service is limited to the fees you paid us in the 3 months before the event that gave rise to the claim.

Nothing in these terms limits liability that cannot be limited by law, such as liability for fraud or for death or personal injury caused by negligence, or any rights you have as a consumer that cannot be waived.

Suspension and termination

You can stop using SimpleVerifier and cancel your subscription at any time. We may suspend or close an account, or disable an API key, if it breaks these terms, puts the service or other people at risk, or if the law requires it. Where it is reasonable, we will tell you first and give you a chance to fix the problem.

Changes to these terms

We may update these terms when the product or the law changes. We will update the “Last updated” date at the top, and if a change is significant, we will say so clearly on this page before it takes effect. If you keep using SimpleVerifier after a change takes effect, the new terms apply. If you do not agree, you can cancel.

Contact

For any question about these terms, email support@simpleverifier.com.

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