Close vs mailfloss: CRM Platform vs Data Enrichment Tool Comparison
Compare Close (CRM platform) and mailfloss (data enrichment tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.

Close is a CRM platform for sales pipeline tracking and customer relationship management, priced from $19/mo, while mailfloss is a data enrichment and email verification tool priced from $29/mo. They serve different jobs rather than competing directly: Close organizes contacts and deals, mailfloss cleans and verifies contact data, and many teams use both together.
Key takeaways
- Close's entry plan, Solo, costs $19/mo and is limited to 10k leads.
- mailfloss's entry plan, Lite, costs $29/mo and includes 10,000 credits per month.
- Close lists built-in calling with Power Dialer and native SMS messaging as key features, while mailfloss lists daily list cleaning and automatic typo fixing.
- Close and mailfloss share only two listed integrations: Zapier and HubSpot.
- mailfloss integrates with a much larger set of email marketing platforms, including Mailchimp, Klaviyo, ActiveCampaign, and Braze, none of which Close lists.
Reviewed and updated September 4, 2026
Close vs mailfloss: CRM Platform vs Data Enrichment Tool Comparison
Close (CRM platform) and mailfloss (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
Close is a CRM platform for customer relationship management and sales pipeline tracking; mailfloss is a data enrichment tool for B2B lead data and contact enrichment. By each vendor's own wording, Close lists built-in calling with power dialer and native sms messaging, and mailfloss lists cleans your list daily and removes addresses that decay over time.
Close offers a lower entry point at $19/mo compared to mailfloss at $29/mo.
If your priority is organizing contacts, tracking deals, and forecasting revenue, Close is the one built for it; for finding accurate contact data for target accounts, that is mailfloss. Many teams run one of each.
Understanding the Core Difference
Close is A CRM built specifically for inside sales teams, with built-in calling, SMS, and email functionality. Close focuses on reducing manual data entry and increasing sales velocity with features like Power Dialer, predictive dialing, and workflow automation.
mailfloss is mailfloss is an email verification service that connects to your email marketing platform and cleans the list daily on autopilot, removing bad addresses, fixing typos and blocking bot and spam signups in real time. Subscriptions are sized by credits per month; prepaid credits cover one-time list uploads.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison

Solo
Lite
Close Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Solo | $19/mo | Limited to 10k leads |
| Essentials | $49/mo | - |
| Growth | $109/mo | - |
| Scale | $149/mo | - |
Source: Close Pricing
mailfloss Pricing (as of September 2026)
| Plan | Price | Emails |
|---|---|---|
| Lite | $29/mo | 10,000 credits/month |
| Business | $59/mo | 25,000 credits/month |
| Pro | $209/mo | 125,000 credits/month |
| Prepaid credits | Usage-based | - |
Source: mailfloss Pricing
Pricing Analysis
Close is more affordable at the entry level ($19/mo vs $29/mo). For teams with tight budgets or those just getting started with customer relationship management and sales pipeline tracking and B2B lead data and contact enrichment, this price difference matters.
Features Breakdown
- Built-in calling with Power Dialer
- Native SMS messaging
- Email sequences and templates
- Automated workflows
- Predictive dialing
- AI Email Assistant
- and 2 more listed below
- Cleans your list daily
- Removes addresses that decay over time
- Custom keep and remove rules
- Zapier integration
- Real-time API
- Webhooks
- and 4 more listed below
Close Key Features
- Built-in calling with Power Dialer
- Native SMS messaging
- Email sequences and templates
- Automated workflows
- Predictive dialing
- AI Email Assistant
- Pipeline and activity reporting
- Role-based access and permissions
mailfloss Key Features
- Cleans your list daily
- Removes addresses that decay over time
- Custom keep and remove rules
- Zapier integration
- Real-time API
- Webhooks
- Automatically fixes typos
- Prevents bounces in real-time
- Auto-tags subscribers after verification
- Single sign-on
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 Close
- Built-in calling with Power Dialer
- Native SMS messaging
- Email sequences and templates
- Automated workflows
- Predictive dialing
- AI Email Assistant
- Pipeline and activity reporting
- Role-based access and permissions
Listed only by mailfloss
- Cleans your list daily
- Removes addresses that decay over time
- Custom keep and remove rules
- Zapier integration
- Real-time API
- Webhooks
- Automatically fixes typos
- Prevents bounces in real-time
- Auto-tags subscribers after verification
- Single sign-on
Integration Ecosystem

Close Integrations
Close connects with: Zapier, Slack, Gmail, Microsoft Outlook, Zoom, HubSpot, Segment, Calendly.
mailfloss Integrations
mailfloss connects with: Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Kit, beehiiv, GoHighLevel, Braze, AWeber, Drip, MailerLite, Constant Contact, Brevo, Campaign Monitor, GetResponse, Ontraport, iContact, Sendlane, Moosend, Keap, Intercom, Customer.io, Iterable, Ghost, Emma, SendPulse, Benchmark, Mautic, Zapier.
Shared Integrations
Both tools integrate with: Zapier, HubSpot.
Integrations listed only by Close: Slack, Gmail, Microsoft Outlook, Zoom, Segment, Calendly.
Integrations listed only by mailfloss: Mailchimp, Klaviyo, ActiveCampaign, Kit, beehiiv, GoHighLevel, Braze, AWeber, Drip, MailerLite, Constant Contact, Brevo, Campaign Monitor, GetResponse, Ontraport, iContact, Sendlane, Moosend, Keap, Intercom, Customer.io, Iterable, Ghost, Emma, SendPulse, Benchmark, Mautic.
Use Case Recommendations
Best Fit for Close
- Budget-conscious teams looking for an affordable CRM platform
- Sales teams tracking deals from first touch to close
- Managers who need pipeline visibility and forecasting
- Growing teams that need scalable contact management
Best Fit for mailfloss
- Budget-conscious teams looking for an affordable data enrichment tool
- Teams that need a wide feature set (10 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (29 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | Close | mailfloss |
|---|---|---|
| Starting Price | $19/mo | $29/mo |
| Top Tier Price | $149/mo | Usage-based |
| Total Features Listed | 8 | 10 |
| Integrations | 8 | 29 |
| Founded | 2013 | N/A |
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
Close serves the customer relationship management and sales pipeline tracking side of an outbound stack and mailfloss the B2B lead data and contact enrichment side. Close offers a more accessible entry point at $19/mo, while mailfloss 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 Close and mailfloss for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between Close and mailfloss?
- Close is a CRM platform built for inside sales teams, with features like Power Dialer, native SMS, and pipeline reporting. mailfloss is a data enrichment and email verification tool that cleans email lists daily, removing bad addresses and fixing typos in real time. They address different parts of an outbound stack rather than competing head to head.
- Which is cheaper, Close or mailfloss?
- Close has a lower entry price at $19/mo for its Solo plan, compared to mailfloss's Lite plan at $29/mo. Close's Solo plan is limited to 10k leads, while mailfloss's Lite plan includes 10,000 credits per month, so the two aren't priced on identical units.
- Can I use Close and mailfloss together?
- Yes, the article notes that many teams run one of each since they solve different problems: Close for tracking deals and pipeline, mailfloss for keeping contact data accurate. Both tools share integrations with Zapier and HubSpot, which can help connect them in a shared workflow.
- Does Close or mailfloss have more integrations?
- mailfloss lists a much larger integration ecosystem, connecting with platforms like Mailchimp, Klaviyo, ActiveCampaign, Braze, and many other email marketing tools, plus Zapier and HubSpot. Close's listed integrations are narrower, including Slack, Gmail, Microsoft Outlook, Zoom, Segment, Calendly, Zapier, and HubSpot.
- Who should choose Close over mailfloss?
- Budget-conscious teams wanting an affordable CRM, sales teams tracking deals from first touch to close, and managers needing pipeline visibility and forecasting are best suited to Close. It's built specifically for inside sales workflows like calling, SMS, and deal tracking rather than list cleaning or data enrichment.
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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