Insightly vs MailerCheck: CRM Platform vs Data Enrichment Tool Comparison
Compare Insightly (CRM platform) and MailerCheck (data enrichment tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Insightly is a CRM platform for sales pipeline tracking and contact management, starting at $29/mo, while MailerCheck is an email list verification and data enrichment tool with a free entry tier and usage-based pricing at $0.01 per credit. They serve different jobs, so many teams run both rather than choosing one over the other.
Key takeaways
- Insightly's entry plan, Plus, costs $29/mo, while MailerCheck offers a free tier with 10 free credits for Email List Verification only.
- Insightly has three pricing tiers (Plus at $29/mo, Professional at $49/mo, Enterprise at $99/mo), while MailerCheck has two (Free credits and Pay as you go).
- MailerCheck's Pay as you go plan starts at 1,000 credits for $0.01 per credit, where 1 credit equals 1 email verification.
- Insightly integrates with 10 tools including Slack, Gmail, QuickBooks Online, Shopify, Jira, and ZoomInfo, while MailerCheck integrates with 7 tools including MailerLite, Mailchimp, ActiveCampaign, and Zapier.
- Both Insightly and MailerCheck list 8 features each on their own product pages.
Reviewed and updated September 4, 2026
Insightly vs MailerCheck: CRM Platform vs Data Enrichment Tool Comparison
Insightly (CRM platform) and MailerCheck (data enrichment tool) sit next to each other in many outbound stacks. They are not substitutes for each other on every job, so this comparison covers pricing, features, and integrations for each and points out where the two meet.
The Quick Answer
Insightly is a CRM platform for customer relationship management and sales pipeline tracking; MailerCheck is a data enrichment tool for B2B lead data and contact enrichment. By each vendor's own wording, Insightly lists lead and contact management and lead assignment and routing, and MailerCheck lists email list verification and email insights.
MailerCheck offers a lower entry point at $0/mo compared to Insightly at $29/mo.
If your priority is organizing contacts, tracking deals, and forecasting revenue, Insightly 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
Insightly is Insightly is a CRM for fast-growing companies that tracks all pipeline data in one place, auto-scores leads and sends follow-ups. It is sold alongside Insightly marketing automation, support and ticketing, and the AppConnect workflow builder.
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
Plus
Free credits
Insightly Pricing (as of September 2026)
| Plan | Price |
|---|---|
| Plus | $29/mo |
| Professional | $49/mo |
| Enterprise | $99/mo |
Source: Insightly 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.
Insightly offers 3 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
- Lead and contact management
- Lead assignment and routing
- Opportunity management
- Customizable sales processes
- Workflow automation
- Project management
- 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
Insightly Key Features
- Lead and contact management
- Lead assignment and routing
- Opportunity management
- Customizable sales processes
- Workflow automation
- Project management
- Advanced reports and pre-built business dashboards
- AI Copilot
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 Insightly
- Lead and contact management
- Lead assignment and routing
- Opportunity management
- Customizable sales processes
- Workflow automation
- Project management
- Advanced reports and pre-built business dashboards
- AI Copilot
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
Insightly Integrations
Insightly connects with: Slack, Gmail, QuickBooks Online, Xero, Shopify, Jira, Asana, Calendly, DocuSign, ZoomInfo.
MailerCheck Integrations
MailerCheck connects with: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make.
Integrations listed only by Insightly: Slack, Gmail, QuickBooks Online, Xero, Shopify, Jira, Asana, Calendly, DocuSign, ZoomInfo.
Integrations listed only by MailerCheck: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make.
Use Case Recommendations
Best Fit for Insightly
- Budget-conscious teams looking for an affordable CRM platform
- Organizations with complex tech stacks needing broad integration support (10 integrations)
- Sales teams tracking deals from first touch to close
- Managers who need pipeline visibility and forecasting
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 | Insightly | MailerCheck |
|---|---|---|
| Starting Price | $29/mo | Free |
| Top Tier Price | $99/mo | Usage-based |
| Total Features Listed | 8 | 8 |
| Integrations | 10 | 7 |
Getting Started Checklist
- Define your customer relationship management and sales pipeline tracking and B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected contacts and deals 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
Insightly serves the customer relationship management and sales pipeline tracking side of an outbound stack and MailerCheck the B2B lead data and contact enrichment side. MailerCheck offers a more accessible entry point, while Insightly 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 Insightly and MailerCheck for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Insightly and MailerCheck?
- Insightly is a CRM platform built for tracking sales pipelines, managing leads and contacts, and forecasting revenue. MailerCheck is a data enrichment tool focused on email list verification, deliverability testing, and validating contact data. They address different jobs in an outbound stack rather than competing directly.
- Which is cheaper, Insightly or MailerCheck?
- MailerCheck has the lower entry point at $0/mo with a free tier offering 10 free credits for email list verification, compared to Insightly's $29/mo starting price for its Plus plan. MailerCheck then moves to usage-based pricing at $0.01 per credit as needs scale.
- Can I use Insightly and MailerCheck together?
- Yes, many teams run both since they serve different purposes. Insightly handles CRM functions like pipeline tracking, lead assignment, and forecasting, while MailerCheck handles email list verification and contact data enrichment, making them complementary rather than competing tools.
- What integrations does each tool support?
- Insightly integrates with 10 tools including Slack, Gmail, QuickBooks Online, Xero, Shopify, Jira, Asana, Calendly, DocuSign, and ZoomInfo. MailerCheck integrates with 7 tools including MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, and Make.
- Who is Insightly best suited for versus MailerCheck?
- Insightly best fits budget-conscious teams needing an affordable CRM, organizations with complex tech stacks requiring broad integrations, and sales teams tracking deals to close. MailerCheck best fits teams wanting a free-to-start data enrichment tool, revenue operations teams building prospect lists, and marketing teams enriching CRM data for segmentation.
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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