Last updated
September 26, 2023

Zerobounce vs Neverbounce: A Comprehensive Comparison

Elizabeth (Lizzie) Shipton

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Dive into this article because it meticulously compares the pivotal features, pricing, and accuracy of Zerobounce and Neverbounce, unveiling a noteworthy alternative.

In the ever-evolving landscape of digital marketing, email marketing has been proven time and again to be one of the most effective marketing strategies.

Email validation is a pivotal factor in ensuring the success of email campaigns. It serves as the first line of defense against inaccurate data that causes high bounce rates and spam traps. Email verification should be performed on every incoming email to your list to ensure that your emails make it to the active, engaged users you want to reach, and not bots or invalid addresses.

Neverbounce and Zerobounce are two leading email validation and email verification services, both offering comprehensive features at various price points. So how do you decide which email verification tool is right for you?

We’ve put together this comparison article, highlighting the features, core features, pricing structures, accuracy rates, integrations, customer feedback, and unique selling points of each platform, and which types of businesses would be best served by each. We’ve also included an alternative solution to these services, in the event that neither one fits your needs.

By the end of this analysis, you will have a clear understanding of which platform aligns best with your email validation needs.

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Core Features

Let’s take a look at the pivotal components that make each CRM worth considering.


Neverbounce’s suite of features can be broadly categorized into three main pillars: bulk email validation, real-time verification, and automated list cleaning. Each pillar offers a rich set of features designed to clean email lists effectively.

Bulk Cleaning

Neverbounce offers two ways to manage bulk list cleaning: via a dashboard on their website, or via the API. The dashboard is clean, intuitive, and simple to use, offering a drag-and-drop interface or file uploader. You can also easily integrate other SAAS email marketing platforms like Mailchimp and Mailerlite to import lists from there.

Real-Time Validation

The real-time validator is implemented in four ways: through a dashboard, through the API, through a Zapier integration, or by a Javascript widget. That makes it very easy to incorporate real-time validation into your app, or to do painless verification anytime an email makes its way onto your list.

Automated List Cleaning

Simply connect your email marketing service provider and select your options for easy, automated list cleaning on a schedule. Fully comprehensive email verification is run every day against your list, so you can have the confidence that any time you press send, your list is up to date.

These implementations gives you access to the following set of features:

  • Bounce detection: Identify hard and soft bounces for actionable insights.
  • Disposable email detection: Flag disposable or temporary email addresses.
  • Spam trap detection: Prevent emails from being flagged as spam by avoiding known traps and catch-all email addresses.
  • Syntax and format checks: Ensure emails follow the correct structure.
  • Domain health checks: Assess the overall health of sender domains.


Zerobounce also offers an array of email list cleaning features designed to maintain healthy email lists. Zerobounce breaks their offerings down into the following categories: email validation, email finder, email activity data, email score, email testing tools, blacklist monitor.

Email Validation

Similar to Nevernounce, Zerobounce offers an email verifier for bulk lists, real-time, and through an API. They also have an automated list cleaning option that will check the validity and email deliverability of the addresses in your list every day.

Email Finder

Zerobounce offers data enhancement by allowing you to look up email addresses for contacts within an organization, gather details about their IP address, determine the likely gender of the email owner, or fill in gaps in your existing data.

Blacklist Monitor

Make sure your sender address never ends up on an email blacklist. Zerobounce will conduct daily scans of all known blacklists and alert you if your address has been found on any of them. This helps protect your sender reputation and email deliverability score.

Email Testing

Find out how many of your emails will actually make it to users’ inboxes, and make sure your own email server is configured correctly with Zerobounce’s inbox testing and deliverability testing tools.

To sum up, Zerobounce gives you access to the following features:

  • Email scoring: Assign a quality score to email addresses to gauge their value.
  • Abuse and fraud detection: Detect potential threats and email abuse.
  • IP information: Gather details about the sender's IP address.
  • Gender information: Determine the likely gender of the email owner.
  • Social append: Add social media profiles to email contacts.
  • GDPR compliance tools: Ensure data privacy and compliance.

Bottom line: Both platforms provide a robust set of features, but Zerobounce's additional services such as email scoring, abuse detection, and social append can be advantageous for businesses seeking comprehensive email data enrichment.

Pricing Comparison


Neverbounce offers flexible pricing tiers, starting from a pay-as-you-go option to monthly plans for high-volume users that want automated cleaning. Costs may vary depending on the features you require and the frequency of usage. It's important to note that unused credits may expire after a certain period.

Pay-as-you-go rates start at $0.008/email for up to 10,000 emails, and drop to $0.003/email for up to 1,000,000 emails.

Automated sync rates start at $10/month for up to 1000 emails, and go up to $999/month for up to 1,000,000 emails.


Zerobounce also follows a credit-based pricing model, but they offer a wider variety of plans to cater to different business sizes and needs. This includes free credits for basic users. Zerobounce also offers API plans for developers who require real-time verification.

Pay-as-you-go is free for up to 100 emails. From there, plans start at $0.008/email for up to 5000 emails and drop to $0.003 for 250,000 emails.

Bottom line: Both platforms provide competitive pricing options, but Zerobounce's slightly lower pricing and free tier may be appealing to smaller businesses looking to get started without a significant financial commitment.

Accuracy and Validation Process

Email validation accuracy is paramount in ensuring the success of your email campaigns.


Neverbounce boasts an accuracy rate of over 98%. They utilize multiple validation methods, including SMTP checks and MX record lookups, to verify email addresses. Real-time verification ensures that only valid email addresses are accepted during data entry.


Zerobounce claims an impressive accuracy rate of 98.8%. Their validation process includes domain checks, syntax verification, and SMTP authentication. Email scoring is an additional feature that helps gauge the quality of email addresses.

Bottom line: Both platforms offer high accuracy rates, but Zerobounce's slightly higher rate may be appealing to businesses with stringent email validation needs.

Integrations and Compatibility

The need to integrate with other SAAS platforms might be a deciding factor for businesses utilizing a lot of online tools. Let’s look at how Neverbounce and Zerobounce handle integrations.


Neverbounce provides integrations with popular email marketing platforms such as Mailchimp, HubSpot, Marketo, Shopify, WordPress, Excel, and nearly 100 other services. They also offer a developer-friendly API for custom integrations. Integration options are generally robust and user-friendly.


Zerobounce offers integrations with a wide range of platforms, including Salesforce, Shopify, WordPress, and around 50 other platforms. They provide detailed documentation for developers looking to integrate their API. Zerobounce's extensive integration options make it adaptable to various marketing ecosystems.

Bottom line: The ease of integration and compatibility largely depends on your existing tech stack, but both platforms offer ample options for seamless integration. Neverbounce offers a few more integrations, but both integrate with the popular and in-demand SAAS platforms you are likely to be using.

Customer Feedback and Reviews


Customer feedback for Neverbounce is generally positive, with users praising its accuracy and ease of use. However, some have mentioned concerns about pricing for high-volume usage. Customer support has received mixed reviews, with some users reporting slower response times.

Here are a few examples, pulled from G2:

Appreciate that NeverBounce allows me to upload a list and do a free check before paying for a cleansing. I also love that they provide source data for the email domain so we can see if the email is hosted via a large provider like Google or Microsoft.
The point system for payments is a credit system and a bit confusing. I wish they'd have a cost per record and skip the credit system altogether. I just want to know how many records I can clean.
I think the prices are high and just like any other email verification services out there, the accuracy is good but not perfect just like all the others.


Zerobounce also enjoys positive feedback regarding accuracy and features. Users appreciate the email scoring and abuse detection capabilities. However, there have been occasional reports of false positives in their validation results. Customer support is generally well-received, with prompt responses noted by many users.

The platform is super user-friendly. You get to perform the task with just a few clicks. The support group is great and they offer bonus credits too! Integrations and API availability are also a huge plus!
There is no option to download a direct csv file with the result of your choice. I like that they proactively group them per result type but downloading the result in a zip file takes more time and effort.
The only thing I dislike about ZeroBounce is the need to purchase credits ahead of time. I want to be able to upload the contact list and be presented with the cost of cleaning the list.

Bottom line: Both platforms receive both positive and negative feedback from users. It's important to consider the specific needs and expectations of your business when evaluating customer feedback.

Unique Selling Points (USPs)


Neverbounce's unique selling points include a user-friendly interface and an emphasis on real-time verification. They also offer a white-label solution for agencies, allowing them to provide email validation services under their own branding. Name-recognition is also a selling point for this service, as they are one of the most trusted email checker solutions around according to agency reviews.


Zerobounce stands out with its email scoring feature, which can help businesses prioritize and segment email lists effectively. They also offer data enrichment and analysis tools that Neverbounce does not. Additionally, their GDPR compliance tools are a valuable asset for companies operating in Europe.

Bottom line: Both platforms have their unique strengths, and the choice between them will depend on your specific requirements. Businesses seeking data enrichment tools in addition to email validation may be better off going with Zerobounce.

Why AbstractAPI's Email Validation API Service Stands Out

While Neverbounce and Zerobounce are reputable options, it's worth considering an alternative if their features are overkill for what you need, or the price point is too high. One such alternative is AbstractAPI's Email Validation API service.


AbstractAPI differentiates itself through:

  • Advanced algorithms: Leveraging cutting-edge techniques to ensure high accuracy in email validation.
  • Competitive pricing: Offering cost-effective plans suitable for businesses of all sizes.
  • Ease of integration: Providing straightforward integration options and documentation.
  • Compatibility: Supporting a wide range of third-party platforms.

Ease of Use

You can get started with AbstractAPI for free, and use the service free for life for a limited number of emails. This is great news for small business and developers who simply need to test a solution for their app or software.

Just sign up for a free account with your email and a password, and you’ll gain an API key that gives you access to the API endpoint for real-time validation. There is also a bulk email uploader that accepts a CSV file and sends an email containing a results file.


AbstractAPI’s plans start at just $9/month for up to 5000 emails and go up to $499/month for up to 750,000 emails. That’s a significant savings over either Zerobounce or Neverbounce.

Customer Reviews

Feedback from customers about AbstractAPI is mostly positive, with a few complaints about customer service.

Love the simplicity and the pre-built code snippets.
Lots of beneficial tools here that every maker should be bookmarking and using.
More than 40% of emails are still bouncing after verification and charged me for 3 Months even after I don't want to use their service.

Bottom line: Considering the strengths of AbstractAPI's Email Validation API service and the low price point, it's a compelling option worth exploring.

Support and Customer Service

Both Neverbounce and Zerobounce offer support through various channels, including email, chat, and phone. Response times may vary depending on the nature of the inquiry and the chosen support plan.

Tools compared side by side

Feature AbstractAPI Neverbounce Zerobounce Email Validation Yes Yes Yes Real-Time Verification Yes Yes Yes Automated List Cleaning Yes Yes Yes Advanced Algorithms Yes No No Competitive Pricing Yes No No Easy Integration Yes No No Pricing Starts at $9/month Pay-as-you-go starts at $0.008/email Free for up to 100 emails, then starts at $0.008/email


Both Neverbounce and Zerobounce are reliable email validation platforms with their own unique features and strengths. The choice between them will come down to your specific business needs, budget constraints, and preferences.

Given Zerobounce’s more comprehensive suite of additional tools (including data enrichment, user analysis, email scoring and testing, and abuse detection, they may be a slightly better alternative for companies needing more than just email validation for their marketing lists.

AbstractAPI's Email Validation API service is a viable alternative for businesses looking for a cheaper solution with fewer features. With advanced algorithms, competitive pricing, easy integration, and free email validation for life, AbstractAPI stands out as a compelling choice.

Ultimately, your decision should be based on a careful assessment of your requirements and the features that align most closely with your goals.


Is Neverbounce accurate?

Neverbounce boasts a 98% accuracy score. Users sometimes report that Yahoo email addresses are not always correctly handled. Neverbounce is slightly more accurate than Zerobounce, which might be crucial for companies handling massive volume.

Why use Zerobounce?

Zerobounce offers an impressive range of tools for email validation, verification, data enrichment, user analysis, and inbox testing. It is a great tool for companies looking to improve their email marketing efforts, reduce bounce rates, and avoid ending up in spam.

What is the best email validation tool?

The best email validation tool will come down to your specific needs and budget constraints. Some of the top tools to consider for evaluation include:

  1. AbstractAPI
  2. ZeroBounce
  3. Neverbounce
  5. DeBounce
  6. MyEmailVerifier
  7. Pabbly Email Verification
  8. mailfloss
Elizabeth (Lizzie) Shipton
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