MillionVerifier vs Zeekeo: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare MillionVerifier (data enrichment tool) and Zeekeo (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
MillionVerifier is a data enrichment tool for verifying and enriching B2B contact lists, priced from $0 per month with a free tier, while Zeekeo is a sales engagement platform for multi-channel outreach across email and LinkedIn, priced from $149 per month. Teams needing accurate contact data choose MillionVerifier, teams coordinating outreach campaigns choose Zeekeo, and many run both.
Key takeaways
- MillionVerifier's free account plan costs $0 per month and includes 100 free credits.
- Zeekeo's DIY plan starts at $149 per month per seat, with volume discounts for additional seats.
- MillionVerifier lists 10 integrations including Mailchimp, Zoho CRM, and Mailgun, while Zeekeo lists 5 integrations including Salesforce and Zapier.
- Hubspot is the only integration both MillionVerifier and Zeekeo list.
- MillionVerifier offers EverClean automatic email verification and credits that never expire, features not listed by Zeekeo.
Reviewed and updated September 5, 2026
MillionVerifier vs Zeekeo: Data Enrichment Tool vs Sales Engagement Platform Comparison
MillionVerifier is a data enrichment tool; Zeekeo is a sales engagement platform. Whether you need one, the other, or both depends on which part of the workflow you are buying for: B2B lead data and contact enrichment on one side, multi-channel sales outreach and engagement tracking on the other. This guide lays out what each vendor publishes.
The Quick Answer
MillionVerifier is a data enrichment tool for B2B lead data and contact enrichment; Zeekeo is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, MillionVerifier lists email checker (single) and email list verification (csv), and Zeekeo lists email + linkedin outreach and ai-powered messaging & sequences.
MillionVerifier offers a lower entry point at $0/mo compared to Zeekeo at $149/mo.
If your priority is finding accurate contact data for target accounts, MillionVerifier is the one built for it; for coordinating outreach across email, phone, and social channels, that is Zeekeo. Many teams run one of each.
Understanding the Core Difference
MillionVerifier is Bulk email verification service that cleans uploaded lists, checks single addresses in real time and verifies through an API. Connects to email marketing platforms to import lists and remove bad addresses automatically.
Zeekeo is Outbound platform that runs email and LinkedIn campaigns from one system, with prospecting and data enrichment, AI-powered messaging and sequences, A/B testing and reply intelligence. Sold either as self-serve seats or as a managed service where Zeekeo builds and runs the outbound motion.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Free account
Zeekeo DIY
MillionVerifier Pricing (as of September 2026)
| Plan | Price | Emails |
|---|---|---|
| Free account | Free | 100 free credits |
| Pay as you go | Usage-based | 50,000 emails |
Source: MillionVerifier Pricing
Zeekeo Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Zeekeo DIY | $149/mo | Per seat; volume discounts on more seats | Not published |
| Zeekeo Done-For-You | Contact Sales | Managed service | Not published |
Source: Zeekeo Pricing
Pricing Analysis
MillionVerifier is more affordable at the entry level ($0/mo vs $149/mo). For teams with tight budgets or those just getting started with B2B lead data and contact enrichment and multi-channel sales outreach and engagement tracking, this price difference matters.
MillionVerifier includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- Email Checker (single)
- Email List Verification (CSV)
- Bulk Verifier
- Email Verifier API
- ESP integrations import
- Risky email refund
- and 2 more listed below
- Email + LinkedIn outreach
- AI-powered messaging & sequences
- Smart campaign automation
- A/B testing & optimization
- Analytics & performance dashboards
- AI-generated responses & insights
- and 4 more listed below
MillionVerifier Key Features
- Email Checker (single)
- Email List Verification (CSV)
- Bulk Verifier
- Email Verifier API
- ESP integrations import
- Risky email refund
- EverClean automatic email verification
- Credits never expire
Zeekeo Key Features
- Email + LinkedIn outreach
- AI-powered messaging & sequences
- Smart campaign automation
- A/B testing & optimization
- Analytics & performance dashboards
- AI-generated responses & insights
- LinkedIn post creation & scheduling
- Image & GIF personalization
- Workflow automation
- Targeted calling & appointment setting
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by MillionVerifier
- Email Checker (single)
- Email List Verification (CSV)
- Bulk Verifier
- Email Verifier API
- ESP integrations import
- Risky email refund
- EverClean automatic email verification
- Credits never expire
Listed only by Zeekeo
- Email + LinkedIn outreach
- AI-powered messaging & sequences
- Smart campaign automation
- A/B testing & optimization
- Analytics & performance dashboards
- AI-generated responses & insights
- LinkedIn post creation & scheduling
- Image & GIF personalization
- Workflow automation
- Targeted calling & appointment setting
Integration Ecosystem
MillionVerifier Integrations
MillionVerifier connects with: Mailchimp, Hubspot, Zoho CRM, Getresponse, AWeber, MailerLite, Drip, Campaign Monitor, Mailgun, Mailjet.
Zeekeo Integrations
Zeekeo connects with: HubSpot, Salesforce, Zapier, Google, Microsoft.
Shared Integrations
Both tools integrate with: Hubspot.
Integrations listed only by MillionVerifier: Mailchimp, Zoho CRM, Getresponse, AWeber, MailerLite, Drip, Campaign Monitor, Mailgun, Mailjet.
Integrations listed only by Zeekeo: Salesforce, Zapier, Google, Microsoft.
Use Case Recommendations
Best Fit for MillionVerifier
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (10 integrations)
- Teams that want to start free and scale up as needs grow
Best Fit for Zeekeo
- Mid-market to enterprise teams with established multi-channel sales outreach and engagement tracking budgets
- Teams that need a wide feature set (10 capabilities listed)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | MillionVerifier | Zeekeo |
|---|---|---|
| Starting Price | Free | $149/mo |
| Top Tier Price | Usage-based | Contact Sales |
| Total Features Listed | 8 | 10 |
| Integrations | 10 | 5 |
Getting Started Checklist
- Define your B2B lead data and contact enrichment and multi-channel sales outreach and engagement tracking requirements and monthly budget
- Estimate your expected data credits or contact lookups and sequences and engagement actions to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
MillionVerifier serves the B2B lead data and contact enrichment side of an outbound stack and Zeekeo the multi-channel sales outreach and engagement tracking side. MillionVerifier offers a more accessible entry point, while Zeekeo starts at $149/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit MillionVerifier and Zeekeo for current information.
Frequently asked questions.
Frequently asked questions- What's the main difference between MillionVerifier and Zeekeo?
- MillionVerifier is a data enrichment tool for verifying and enriching B2B contact lists, while Zeekeo is a sales engagement platform for multi-channel outreach across email and LinkedIn. They serve different parts of the sales workflow, contact data quality versus outreach execution, and many teams use both together.
- How much does MillionVerifier cost?
- MillionVerifier offers a free account plan with 100 free credits, plus a pay as you go plan that is usage based and covers up to 50,000 emails. There is no fixed monthly subscription required to get started.
- How much does Zeekeo cost?
- Zeekeo's DIY plan starts at $149 per month, priced per seat with volume discounts available for additional seats. A Done-For-You managed service option is also available, priced by contacting sales directly rather than through published pricing.
- Do MillionVerifier and Zeekeo integrate with the same tools?
- Only partially. Hubspot is the one integration both vendors list, while MillionVerifier separately connects with tools such as Mailchimp, Zoho CRM, and Mailgun, and Zeekeo separately connects with Salesforce, Zapier, Google, and Microsoft.
- Should I use both MillionVerifier and Zeekeo?
- Many teams do, since the two tools cover different needs. MillionVerifier suits budget conscious teams needing affordable, accurate contact data enrichment, while Zeekeo is built for coordinating multi-channel outreach across email, LinkedIn, and other channels.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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