Crustdata vs mailfloss: Data Enrichment Tool Comparison
Compare Crustdata and mailfloss side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Crustdata and mailfloss both target B2B contact data accuracy but solve different problems. Crustdata is a B2B data API for company, person, job and social post search, enrichment and identity resolution with usage-based pricing. mailfloss is an email verification service that cleans email lists daily, starting at $29/mo. The right pick depends on whether you need data enrichment or list hygiene.
Key takeaways
- mailfloss publishes an entry price of $29/mo for its Lite plan, covering 10,000 credits per month.
- Crustdata uses usage-based pricing with credits valid for 6 months from the purchase date.
- mailfloss offers 4 pricing tiers compared to Crustdata's 3 tiers.
- Crustdata lists integrations with Claude, Claude Code, Cursor, VS Code, and Slack.
- mailfloss lists integrations with 28 platforms including Mailchimp, Klaviyo, HubSpot, ActiveCampaign, and Zapier.
Reviewed and updated September 4, 2026
Crustdata vs mailfloss: Data Enrichment Tool Comparison
If you are comparing B2B lead data and contact enrichment tools, Crustdata 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, Crustdata lists real-time hiring, funding, and company event signals and credit-based usage tiers, 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.
mailfloss publishes an entry price of $29/mo; Crustdata uses usage-based pricing, so the two cannot be compared on list price.
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
Crustdata is B2B data API for company, person, job and social post search, enrichment and identity resolution, also delivered as a monthly refreshed flat file dataset.
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
Self-serve
Lite
Crustdata Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Self-serve | Usage-based | Credit-based; credits are valid for 6 months from the purchase date |
| Enterprise | Contact Sales | Custom data sets and dedicated support |
| Flat file company & people data | Contact Sales | Monthly refresh of millions of companies and profiles, delivered as CSV or JSON on-demand |
Source: Crustdata 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
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 Crustdata's 3, giving you more granularity as you scale.
Features Breakdown
- Real-time hiring, funding, and company event signals
- Credit-based usage tiers
- Unified from 11+ trusted sources
- Delivered as CSV or JSON on-demand
- Company Enrichment API
- People Search API
- 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
Crustdata Key Features
- Real-time hiring, funding, and company event signals
- Credit-based usage tiers
- Unified from 11+ trusted sources
- Delivered as CSV or JSON on-demand
- Company Enrichment API
- People Search API
- Jobs API
- Watcher API
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 Crustdata
- Real-time hiring, funding, and company event signals
- Credit-based usage tiers
- Unified from 11+ trusted sources
- Delivered as CSV or JSON on-demand
- Company Enrichment API
- People Search API
- Jobs API
- Watcher API
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
Crustdata Integrations
Crustdata connects with: Claude, Claude Code, Cursor, VS Code, Slack.
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.
Integrations listed only by Crustdata: Claude, Claude Code, Cursor, VS Code, Slack.
Integrations listed only by mailfloss: 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.
Use Case Recommendations
Best Fit for Crustdata
- Enterprise buyers who prefer custom pricing and dedicated support
- Revenue operations teams building targeted prospect lists
- Marketing teams enriching CRM data for segmentation
- Sales teams researching target accounts
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 | Crustdata | mailfloss |
|---|---|---|
| Starting Price | Usage-based | $29/mo |
| Top Tier Price | Contact Sales | Usage-based |
| Total Features Listed | 8 | 10 |
| Integrations | 5 | 29 |
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
Crustdata and mailfloss both serve the B2B lead data and contact enrichment market. mailfloss publishes an entry price of $29/mo, while Crustdata uses usage-based 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 Crustdata and mailfloss for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Crustdata and mailfloss?
- Crustdata is a B2B data API for company, person, job and social post search, enrichment, and identity resolution, also available as a monthly refreshed flat file dataset. mailfloss is an email verification service that connects to your email marketing platform and cleans your list daily on autopilot, removing bad addresses and fixing typos.
- How much does mailfloss cost?
- mailfloss starts at $29/mo for the Lite plan, which includes 10,000 credits per month. The Business plan is $59/mo for 25,000 credits, and the Pro plan is $209/mo for 125,000 credits. Prepaid credits are also available on a usage-based basis for one-time list uploads.
- How is Crustdata priced compared to mailfloss?
- Crustdata uses usage-based pricing rather than a fixed monthly list price, so it cannot be directly compared to mailfloss's published price. Crustdata's self-serve plan is credit-based with credits valid for 6 months, while Enterprise and flat file data plans require contacting sales for a custom quote.
- Which integrations does each tool support?
- Crustdata connects with Claude, Claude Code, Cursor, VS Code, and Slack. mailfloss connects with a much larger list of email marketing platforms, including Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Kit, beehiiv, GoHighLevel, Braze, AWeber, Drip, and Zapier, among others.
- Who should choose Crustdata over mailfloss?
- Crustdata fits enterprise buyers who prefer custom pricing and dedicated support, as well as revenue operations teams that need company, person, and job data enrichment through an API or flat file dataset. mailfloss instead fits teams focused specifically on email list hygiene and deliverability.
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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