mailfloss vs PersistIQ: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare mailfloss (data enrichment tool) and PersistIQ (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
mailfloss is a data enrichment tool starting at $29/mo for 10,000 credits, built for B2B lead data and contact list cleaning. PersistIQ is a sales engagement platform with custom pricing only, built for multi-channel outreach across email, phone, and social. Many teams use both together rather than choosing one over the other.
Key takeaways
- mailfloss publishes four pricing tiers: Lite at $29/mo for 10,000 credits, Business at $59/mo for 25,000 credits, Pro at $209/mo for 125,000 credits, and usage-based prepaid credits.
- PersistIQ lists all plans as Contact Sales, offering no published price tiers.
- mailfloss lists 29 integrations including Mailchimp, Klaviyo, HubSpot, and ActiveCampaign, while PersistIQ lists 7 including Salesforce, Copper, Pipedrive, and HubSpot.
- HubSpot and Zapier are the only integrations shared between mailfloss and PersistIQ.
- PersistIQ offers a 14-day free trial, a feature not listed by mailfloss.
Reviewed and updated September 4, 2026
mailfloss vs PersistIQ: Data Enrichment Tool vs Sales Engagement Platform Comparison
mailfloss is a data enrichment tool; PersistIQ 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
mailfloss is a data enrichment tool for B2B lead data and contact enrichment; PersistIQ is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, mailfloss lists cleans your list daily and removes addresses that decay over time, and PersistIQ lists multi-channel sales outreach and prospecting.
mailfloss publishes an entry price of $29/mo; PersistIQ uses custom pricing, so the two cannot be compared on list price.
If your priority is finding accurate contact data for target accounts, mailfloss is the one built for it; for coordinating outreach across email, phone, and social channels, that is PersistIQ. Many teams run one of each.
Understanding the Core Difference
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.
PersistIQ is Sales engagement platform for small teams that builds prospect lists, automates personalized email, call and task sequences, and syncs activity with a CRM.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Lite
All plans
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
PersistIQ Pricing (as of September 2026)
| Plan | Price |
|---|---|
| All plans | Contact Sales |
Source: PersistIQ Pricing
Pricing Analysis
One or both platforms use custom or contact-based pricing for some tiers. Reach out to their sales teams for exact quotes based on your usage needs.
mailfloss offers 4 pricing tiers compared to PersistIQ's 1, giving you more granularity as you scale.
Features Breakdown
- 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
- Multi-channel Sales Outreach
- Prospecting
- Sales Email AI
- Chrome Extension
- A/B test
- Reporting
- and 2 more listed below
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
PersistIQ Key Features
- Multi-channel Sales Outreach
- Prospecting
- Sales Email AI
- Chrome Extension
- A/B test
- Reporting
- CRM Integrations
- 14-day free trial
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 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
Listed only by PersistIQ
- Multi-channel Sales Outreach
- Prospecting
- Sales Email AI
- Chrome Extension
- A/B test
- Reporting
- CRM Integrations
- 14-day free trial
Integration Ecosystem
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.
PersistIQ Integrations
PersistIQ connects with: Salesforce, Copper, Pipedrive, HubSpot, Gmail, Outlook, Zapier.
Shared Integrations
Both tools integrate with: HubSpot, Zapier.
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.
Integrations listed only by PersistIQ: Salesforce, Copper, Pipedrive, Gmail, Outlook.
Use Case Recommendations
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
Best Fit for PersistIQ
- Enterprise buyers who prefer custom pricing and dedicated support
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
- Revenue teams coordinating email, phone, and social touches
Feature Comparison Summary
| Feature | mailfloss | PersistIQ |
|---|---|---|
| Starting Price | $29/mo | Contact Sales |
| Top Tier Price | Usage-based | Contact Sales |
| Total Features Listed | 10 | 8 |
| Integrations | 29 | 7 |
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
mailfloss serves the B2B lead data and contact enrichment side of an outbound stack and PersistIQ the multi-channel sales outreach and engagement tracking side. mailfloss publishes an entry price of $29/mo, while PersistIQ uses custom pricing for its plans, so compare on features and on the quote you receive. 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 mailfloss and PersistIQ for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between mailfloss and PersistIQ?
- mailfloss is a data enrichment tool focused on B2B lead data and contact enrichment, including cleaning email lists daily and removing decaying addresses. PersistIQ is a sales engagement platform focused on multi-channel sales outreach and engagement tracking, including prospecting and sequence automation. They serve different parts of the sales workflow.
- How much does mailfloss cost compared to PersistIQ?
- mailfloss starts at $29/mo for its Lite plan with 10,000 credits per month, with Business at $59/mo and Pro at $209/mo. PersistIQ does not publish pricing and lists all plans as Contact Sales, so the two cannot be compared on list price.
- Do mailfloss and PersistIQ integrate with the same tools?
- They share only two integrations: HubSpot and Zapier. mailfloss additionally connects with 27 other tools including Mailchimp, Klaviyo, and ActiveCampaign, while PersistIQ additionally connects with Salesforce, Copper, Pipedrive, Gmail, and Outlook.
- Should I use mailfloss and PersistIQ together?
- Many teams run one of each since the tools solve different problems. mailfloss handles finding and maintaining accurate contact data for target accounts, while PersistIQ handles coordinating outreach across email, phone, and social channels once that data exists.
- Does PersistIQ offer a free trial?
- Yes, PersistIQ lists a 14-day free trial among its key features. mailfloss does not list a free trial in its published feature set, offering prepaid credits for one-time list uploads instead.
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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