Kaspr vs MailerCheck: Data Enrichment Tool Comparison
Compare Kaspr and MailerCheck side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Kaspr is a B2B contact data and lead enrichment tool with a LinkedIn Chrome extension, phone number lookup, and CRM sync, while MailerCheck is an email list verification and deliverability testing tool. Both start free. Kaspr scales to $65/mo and $99/mo paid tiers, and MailerCheck uses pay-as-you-go credits at $0.01 each.
Key takeaways
- Kaspr's paid plans cost $65/mo for Starter and $99/mo for Business, with an Enterprise tier available through custom pricing.
- MailerCheck offers 10 free credits on signup, then a pay-as-you-go plan starting at 1,000 credits for $0.01 per credit.
- Kaspr integrates with 9 tools including HubSpot, Salesforce, and Pipedrive, while MailerCheck integrates with 7 tools including Mailchimp and ActiveCampaign.
- Both Kaspr and MailerCheck list 8 total features on their own pages, and both share Zapier as a common integration.
- Kaspr offers 4 pricing tiers compared to MailerCheck's 2 pricing tiers.
Reviewed and updated September 5, 2026
Kaspr vs MailerCheck: Data Enrichment Tool Comparison
Kaspr and MailerCheck compete head-to-head in the B2B lead data and contact enrichment space. This guide compares their pricing tiers, feature sets, and integration ecosystems to help you make a confident decision.
The Quick Answer
By each vendor's own wording, Kaspr lists kaspr chrome extension and lead management, while MailerCheck lists email list verification and email insights. A capability both offer can appear under different names, so read both feature lists below.
Both start at the same price point ($0/mo), so the decision comes down to features and workflow fit.
If your priority is finding accurate contact data for target accounts, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.
Understanding the Core Difference
Kaspr is B2B contact data tool with a LinkedIn Chrome extension for phone numbers and email addresses, lead management, bulk enrichment and CRM sync.
MailerCheck is Email list verification and deliverability testing tool that validates single addresses, bulk lists or new signups through an API, and tests email content and inbox placement before a send.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Kaspr Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free | Free | 15 B2B email credits, 5 Phone credits and 5 Direct email credits per month |
| Starter | $65/mo | Unlimited B2B email credits, 100 Phone credits and 5 Direct email credits per month |
| Business | $99/mo | Unlimited B2B email credits, 200 Phone credits and 200 Direct email credits per month |
| Enterprise | Contact Sales | Unlimited B2B email credits and unlimited Phone credits |
Source: Kaspr Pricing
MailerCheck Pricing (as of September 2026)
| Plan | Price | Emails |
|---|---|---|
| Free credits | Free | 10 free credits on a new account, for Email List Verification only |
| Pay as you go | Usage-based | 1,000 credits at the entry step, at $0.01 per credit; 1 credit = 1 email verification |
Source: MailerCheck Pricing
Pricing Analysis
Both platforms start at the same $0/mo price point. The decision comes down to which feature set and tier structure works better for your expected usage.
Kaspr offers 4 pricing tiers compared to MailerCheck's 2, giving you more granularity as you scale.
Both platforms offer free tiers, so you can test each one before spending anything.
Features Breakdown
- Kaspr Chrome Extension
- Lead Management
- Enrichment Automations
- CSV Enrichment
- Kaspr on Sales Navigator
- Shared credits
- and 2 more listed below
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- and 2 more listed below
Kaspr Key Features
- Kaspr Chrome Extension
- Lead Management
- Enrichment Automations
- CSV Enrichment
- Kaspr on Sales Navigator
- Shared credits
- Kaspr on LinkedIn Recruiter Lite
- Team Usage Reports
MailerCheck Key Features
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- Credits and autopay
- Statuses
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 Kaspr
- Kaspr Chrome Extension
- Lead Management
- Enrichment Automations
- CSV Enrichment
- Kaspr on Sales Navigator
- Shared credits
- Kaspr on LinkedIn Recruiter Lite
- Team Usage Reports
Listed only by MailerCheck
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- Credits and autopay
- Statuses
Integration Ecosystem
Kaspr Integrations
Kaspr connects with: HubSpot, Salesforce, Pipedrive, Zoho CRM, Brevo, Lemlist, Zapier, Ringover, Aircall.
MailerCheck Integrations
MailerCheck connects with: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by Kaspr: HubSpot, Salesforce, Pipedrive, Zoho CRM, Brevo, Lemlist, Ringover, Aircall.
Integrations listed only by MailerCheck: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Make.
Use Case Recommendations
Best Fit for Kaspr
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for MailerCheck
- Budget-conscious teams looking for an affordable data enrichment tool
- Teams that want to start free and scale up as needs grow
- Revenue operations teams building targeted prospect lists
- Marketing teams enriching CRM data for segmentation
Feature Comparison Summary
| Feature | Kaspr | MailerCheck |
|---|---|---|
| Starting Price | Free | Free |
| Top Tier Price | Contact Sales | Usage-based |
| Total Features Listed | 8 | 8 |
| Integrations | 9 | 7 |
Getting Started Checklist
- Define your B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected data credits or contact lookups 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
Kaspr and MailerCheck both serve the B2B lead data and contact enrichment market. Kaspr offers a more accessible entry point, while MailerCheck starts at $0/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 Kaspr and MailerCheck for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Kaspr and MailerCheck?
- Kaspr is a B2B contact data enrichment tool with a LinkedIn Chrome extension for finding phone numbers and emails, lead management, and CRM sync. MailerCheck is an email list verification and deliverability testing tool that validates single addresses or bulk lists through an API and tests inbox placement before a send.
- How much do Kaspr and MailerCheck cost?
- Kaspr's Starter plan costs $65/mo and its Business plan costs $99/mo, with an Enterprise tier available on request, plus a free tier that includes 15 B2B email credits per month. MailerCheck offers 10 free verification credits on a new account, then a pay-as-you-go plan starting at 1,000 credits for $0.01 per credit.
- Which tool has more integrations, Kaspr or MailerCheck?
- Kaspr lists 9 integrations, including HubSpot, Salesforce, Pipedrive, Zoho CRM, Brevo, Lemlist, Ringover, and Aircall. MailerCheck lists 7 integrations, including MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, and Make. Both tools share Zapier as a common integration.
- Is Kaspr or MailerCheck better for budget-conscious teams?
- Both tools are recommended for budget-conscious teams since each offers a free tier to start and scale up as needs grow. The right pick depends on whether the priority is contact and lead data enrichment, which favors Kaspr, or email list verification and deliverability testing, which favors MailerCheck.
- Which tool is better for revenue operations or marketing teams?
- MailerCheck is recommended for revenue operations teams building targeted prospect lists and marketing teams enriching CRM data for segmentation. Kaspr is better suited for organizations with complex tech stacks needing broad integration support or enterprise buyers who prefer custom pricing and dedicated support.
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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