JustCall vs MailerCheck: Sales Engagement Platform vs Data Enrichment Tool Comparison
Compare JustCall (sales engagement platform) and MailerCheck (data enrichment tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
JustCall is a sales engagement platform for multi-channel outreach starting at $29 per month, MailerCheck is a data enrichment tool for email list verification starting free. Choose JustCall for phone, SMS, and WhatsApp outreach, and MailerCheck for verifying email lists and deliverability. Many teams use both together.
Key takeaways
- JustCall's entry level Team plan costs $29 per month.
- MailerCheck gives new accounts 10 free credits for email list verification only.
- MailerCheck's pay as you go plan starts at 1,000 credits priced at $0.01 per credit.
- JustCall offers 5 pricing tiers, while MailerCheck offers 2.
- Zapier is the only integration listed by both JustCall and MailerCheck, while JustCall separately connects with Salesforce, HubSpot, and Pipedrive, and MailerCheck connects with Mailchimp and ActiveCampaign.
Reviewed and updated September 5, 2026
JustCall vs MailerCheck: Sales Engagement Platform vs Data Enrichment Tool Comparison
JustCall is a sales engagement platform; MailerCheck is a data enrichment tool. Whether you need one, the other, or both depends on which part of the workflow you are buying for: multi-channel sales outreach and engagement tracking on one side, B2B lead data and contact enrichment on the other. This guide lays out what each vendor publishes.
The Quick Answer
JustCall is a sales engagement platform for multi-channel sales outreach and engagement tracking; MailerCheck is a data enrichment tool for B2B lead data and contact enrichment. By each vendor's own wording, JustCall lists sales dialer and sms workflows, and MailerCheck lists email list verification and email insights.
MailerCheck offers a lower entry point at $0/mo compared to JustCall at $29/mo.
If your priority is coordinating outreach across email, phone, and social channels, JustCall is the one built for it; for finding accurate contact data for target accounts, that is MailerCheck. Many teams run one of each.
Understanding the Core Difference
JustCall is AI communication platform for sales and support teams combining a cloud phone system, sales dialer, SMS and WhatsApp inboxes, and multi-channel workflow automation. Adds AI call coaching, transcription, sentiment analysis and CRM integration.
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
Team
Free credits
JustCall Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Team | $29/mo | Per user; minimum license applies | Unlimited outbound minutes under fair usage; included SMS segments by region |
| Pro | $49/mo | Per user; minimum license applies | Unlimited outbound minutes under fair usage |
| Pro Plus | $89/mo | Minimum license: 2 | Unlimited outbound and inbound minutes under fair usage; 1,000 SMS segments |
| Business | Contact Sales | Minimum license: 10 | Unlimited calling & SMS |
| SalesPro | Contact Sales | Minimum license: 2 | Unlimited outbound calling under fair usage |
Source: JustCall 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
MailerCheck offers the lower entry point ($0/mo vs $29/mo). Teams watching their budget will appreciate the savings, especially when starting out.
JustCall offers 5 pricing tiers compared to MailerCheck's 2, giving you more granularity as you scale.
MailerCheck includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Sales Dialer
- SMS Workflows
- Bulk SMS
- WhatsApp Inbox
- Call Recording
- Advanced Analytics
- and 4 more listed below
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- and 2 more listed below
JustCall Key Features
- Sales Dialer
- SMS Workflows
- Bulk SMS
- WhatsApp Inbox
- Call Recording
- Advanced Analytics
- Automated Call Distribution
- Sentiment analysis
- AI call scoring
- Real-time agent assist
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 JustCall
- Sales Dialer
- SMS Workflows
- Bulk SMS
- WhatsApp Inbox
- Call Recording
- Advanced Analytics
- Automated Call Distribution
- Sentiment analysis
- AI call scoring
- Real-time agent assist
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
JustCall Integrations
JustCall connects with: Salesforce, HubSpot, Pipedrive, Zoho, Zapier, Slack, Copper, Intercom, Zendesk, Freshdesk.
MailerCheck Integrations
MailerCheck connects with: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by JustCall: Salesforce, HubSpot, Pipedrive, Zoho, Slack, Copper, Intercom, Zendesk, Freshdesk.
Integrations listed only by MailerCheck: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Make.
Use Case Recommendations
Best Fit for JustCall
- Budget-conscious teams looking for an affordable sales engagement platform
- Teams that need a wide feature set (10 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (10 integrations)
- 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 | JustCall | MailerCheck |
|---|---|---|
| Starting Price | $29/mo | Free |
| Top Tier Price | Contact Sales | Usage-based |
| Total Features Listed | 10 | 8 |
| Integrations | 10 | 7 |
Getting Started Checklist
- Define your multi-channel sales outreach and engagement tracking and B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected sequences and engagement actions and 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
JustCall serves the multi-channel sales outreach and engagement tracking side of an outbound stack and MailerCheck the B2B lead data and contact enrichment side. MailerCheck offers a more accessible entry point, while JustCall starts at $29/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 JustCall and MailerCheck for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between JustCall and MailerCheck?
- JustCall is a sales engagement platform built for multi-channel sales outreach and engagement tracking, while MailerCheck is a data enrichment tool focused on B2B lead data and email list verification. JustCall covers phone, SMS, and WhatsApp workflows, while MailerCheck validates single addresses, bulk lists, and tests inbox placement before sending.
- How much does JustCall cost compared to MailerCheck?
- JustCall's entry level Team plan costs $29 per month, while MailerCheck offers a free tier with 10 free credits for email list verification, plus a pay as you go plan at $0.01 per credit starting at 1,000 credits. MailerCheck has the lower entry point of the two.
- Can I use both JustCall and MailerCheck together?
- Yes, many teams run one of each since they serve different parts of the workflow. JustCall handles multi-channel outreach across email, phone, and social channels, while MailerCheck verifies contact data accuracy, so combining them covers both engagement and data quality needs.
- What integrations does each platform support?
- JustCall connects with Salesforce, HubSpot, Pipedrive, Zoho, Zapier, Slack, Copper, Intercom, Zendesk, and Freshdesk. MailerCheck connects with MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, and Make. The only integration listed by both tools is Zapier.
- Which tool is best for a budget-conscious team?
- MailerCheck is the better fit for budget-conscious teams since it includes a free tier with 10 free credits and no monthly commitment, compared to JustCall's $29 per month starting price. JustCall is described as an affordable option for teams needing a wide feature set once budget allows.
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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