Adapt.io vs mailfloss: Data Enrichment Tool Comparison
Compare Adapt.io and mailfloss side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Adapt.io and mailfloss both address B2B lead data and contact enrichment but serve different needs. Adapt.io is a lead intelligence platform with 250 million-plus business contacts and a free entry tier, while mailfloss is an email verification service starting at $29 per month that cleans email lists daily. Choose based on budget and whether you need contact discovery or list hygiene.
Key takeaways
- Adapt.io lists 250 million-plus business contacts and 10 million-plus company profiles on its own pricing page.
- Adapt.io offers a free entry plan while mailfloss's Lite plan starts at $29 per month.
- Adapt.io's paid tiers include Starter at $49 per month and Basic at $99 per month, both offering email, phone, and enrichment credits.
- mailfloss's Business plan costs $59 per month for 25,000 credits, and its Pro plan costs $209 per month for 125,000 credits.
- Adapt.io and mailfloss share only two integrations in common: HubSpot and Zapier.
Reviewed and updated September 4, 2026
Adapt.io vs mailfloss: Data Enrichment Tool Comparison
If you are comparing B2B lead data and contact enrichment tools, Adapt.io and mailfloss will likely both appear on your radar. They share some surface-level similarities, but the details reveal important differences in pricing, capability, and target audience.
The Quick Answer
By each vendor's own wording, Adapt.io lists 250m+ business contacts and 10m+ company profiles, while mailfloss lists cleans your list daily and removes addresses that decay over time. A capability both offer can appear under different names, so read both feature lists below.
Adapt.io offers a lower entry point at $0/mo compared to mailfloss at $29/mo.
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
Adapt.io is B2B lead intelligence platform with 250M+ contacts, Prospector Chrome extension, and data enrichment with 50+ attributes.
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
Free
Lite
Adapt.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 25 Email Credits, 25 Enrichment Credits, 25 Contacts per day | 25 Email Credits |
| Starter | $49/mo | 500 Email Credits, 500 Enrichment Credits, 50 Contacts per day | 500 Email Credits |
| Basic | $99/mo | 1,000 Email Credits, 100 Phone Credits, 1,000 Enrichment Credits | 1,000 Email Credits |
| Custom | Contact Sales | Custom | - |
Source: Adapt.io 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
Adapt.io is more affordable at the entry level ($0/mo vs $29/mo). For teams with tight budgets or those just getting started with B2B lead data and contact enrichment, this price difference matters.
Adapt.io includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- 250M+ business contacts
- 10M+ company profiles
- Prospector Chrome extension
- Data enrichment with 50+ attributes
- Lead builder with advanced filters
- ABM list building
- and 4 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
Adapt.io Key Features
- 250M+ business contacts
- 10M+ company profiles
- Prospector Chrome extension
- Data enrichment with 50+ attributes
- Lead builder with advanced filters
- ABM list building
- 3,000+ tech sector classifications
- Saved searches
- CSV export
- API access
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 Adapt.io
- 250M+ business contacts
- 10M+ company profiles
- Prospector Chrome extension
- Data enrichment with 50+ attributes
- Lead builder with advanced filters
- ABM list building
- 3,000+ tech sector classifications
- Saved searches
- CSV export
- API access
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
Adapt.io Integrations
Adapt.io connects with: Salesforce, HubSpot, Zoho CRM, Marketo, Outreach, Zapier.
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: HubSpot, Zapier.
Integrations listed only by Adapt.io: Salesforce, Zoho CRM, Marketo, Outreach.
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 Adapt.io
- Budget-conscious teams looking for an affordable data enrichment tool
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for mailfloss
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (29 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | Adapt.io | mailfloss |
|---|---|---|
| Starting Price | Free | $29/mo |
| Top Tier Price | Contact Sales | Usage-based |
| Total Features Listed | 10 | 10 |
| Integrations | 6 | 29 |
| Founded | 2016 | N/A |
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
Adapt.io and mailfloss both serve the B2B lead data and contact enrichment market. Adapt.io offers a more accessible entry point, 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 Adapt.io and mailfloss for current information.
Frequently asked questions.
Frequently asked questions- What's the main difference between Adapt.io and mailfloss?
- Adapt.io is a B2B lead intelligence platform focused on finding and enriching contact data, with over 250 million business contacts and a Prospector Chrome extension. mailfloss is an email verification service that cleans email lists daily, removing bad addresses and fixing typos. They solve related but distinct problems in the data enrichment space.
- Which tool is cheaper to start with, Adapt.io or mailfloss?
- Adapt.io is cheaper at the entry level, offering a free plan with 25 email credits, 25 enrichment credits, and 25 contacts per day. mailfloss starts at $29 per month for its Lite plan with 10,000 credits per month, so there is no free tier available.
- Do Adapt.io and mailfloss integrate with the same tools?
- They share only two integrations: HubSpot and Zapier. Adapt.io otherwise connects with Salesforce, Zoho CRM, Marketo, and Outreach, while mailfloss connects with a much larger list of email marketing platforms including Mailchimp, Klaviyo, ActiveCampaign, and many others.
- Which tool is better for budget-conscious teams?
- Adapt.io is positioned as the better fit for budget-conscious teams looking for an affordable data enrichment tool, since it includes a free tier that lets teams test the platform before committing financially. mailfloss requires a paid subscription starting at $29 per month with no free plan.
- What kind of pricing structure does mailfloss use?
- mailfloss prices its subscriptions by credits per month, with the Lite plan at $29 per month for 10,000 credits, Business at $59 per month for 25,000 credits, and Pro at $209 per month for 125,000 credits. It also offers prepaid, usage-based credits for one-time list uploads.
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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