Adapt.io vs Seamless.AI: Data Enrichment Tool Comparison
Compare Adapt.io and Seamless.AI side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Adapt.io offers 250M+ business contacts with 50+ enrichment attributes and starts at $49/mo for 500 credits, while Seamless.AI provides real-time contact search with email and cell phone lookups starting at $147/mo for 250 credits. Both offer free tiers and integrate with Salesforce, HubSpot, Outreach, and Zapier. Adapt.io suits teams prioritizing database size and enrichment depth, while Seamless.AI fits teams needing real-time search and phone number access.
Key takeaways
- Adapt.io provides access to 250M+ business contacts and 10M+ company profiles with 50+ enrichment attributes.
- Seamless.AI's Basic plan costs $147/mo for 250 credits, nearly three times Adapt.io's Starter plan at $49/mo for 500 credits.
- Both platforms offer free tiers with no upfront cost, allowing teams to test before committing to paid plans.
- Adapt.io integrates with 6 platforms including Zoho CRM and Marketo, while Seamless.AI connects with 7 platforms including Pipedrive and Microsoft Dynamics 365.
- Seamless.AI uniquely offers real-time contact search with cell phone lookups and pitch intelligence features.
Reviewed and updated February 6, 2026
Adapt.io vs Seamless.AI: Data Enrichment Tool Comparison
If you are comparing B2B lead data and contact enrichment tools, Adapt.io and Seamless.AI 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
Adapt.io stands out with 250m+ business contacts and 10m+ company profiles. Seamless.AI differentiates itself through real-time b2b contact search engine and email and cell phone lookups.
Both start at the same price point ($0/mo), so the decision comes down to features and workflow fit.
If your priority is finding accurate contact data for target accounts, both tools can deliver. 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.
Seamless.AI is AI-powered sales lead platform with real-time contact search engine, pitch intelligence, and data enrichment for B2B prospecting.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Adapt.io Pricing (as of February 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 25 emails/month, 25 enrichment credits | N/A |
| Starter | $49/mo | 500 email credits/month | N/A |
| Basic | $99/mo | 500 email + 500 enrichment credits/month | N/A |
| Custom | Contact Sales | Custom | N/A |
Source: Adapt.io Pricing
Seamless.AI Pricing (as of February 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 50 credits | N/A |
| Basic | $147/mo | 250 credits/month | N/A |
| Pro | Contact Sales | Daily credit refresh | N/A |
| Enterprise | Contact Sales | Custom credits | N/A |
Source: Seamless.AI Pricing
Pricing Analysis
Both platforms start at the same $0/mo price point. The decision comes down to which feature set and tier structure works better for your expected usage.
Both platforms offer free tiers, so you can test each one before spending anything.
Features Breakdown
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
Seamless.AI Key Features
- Real-time B2B contact search engine
- Email and cell phone lookups
- Pitch intelligence
- Data enrichment
- Buyer intent data (add-on)
- Job changes tracking (add-on)
- Autopilot list building (add-on)
- AI writing assistant
- Chrome extension
- Enterprise security and compliance
Unique to 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
Unique to Seamless.AI
- Real-time B2B contact search engine
- Email and cell phone lookups
- Pitch intelligence
- Data enrichment
- Buyer intent data (add-on)
- Job changes tracking (add-on)
- Autopilot list building (add-on)
- AI writing assistant
- Chrome extension
- Enterprise security and compliance
Integration Ecosystem
Adapt.io Integrations
Adapt.io connects with: Salesforce, HubSpot, Zoho CRM, Marketo, Outreach, Zapier.
Seamless.AI Integrations
Seamless.AI connects with: Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Zapier.
Shared Integrations
Both tools integrate with: Salesforce, HubSpot, Outreach, Zapier.
Adapt.io exclusively offers: Zoho CRM, Marketo.
Seamless.AI exclusively offers: SalesLoft, Pipedrive, Microsoft Dynamics 365.
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 Seamless.AI
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (7 integrations)
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | Adapt.io | Seamless.AI |
|---|---|---|
| Starting Price | Free | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 10 | 10 |
| Integrations | 6 | 7 |
| Founded | 2016 | 2015 |
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 Seamless.AI both serve the B2B lead data and contact enrichment market well. Adapt.io offers a more accessible entry point, while Seamless.AI starts at $0/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.
Related Reading
- Best Adapt.io Alternatives in 2026
- Best Seamless.AI Alternatives in 2026
- Adapt.io vs Apollo.io: Data Enrichment Tool Comparison
- Adapt.io vs ZoomInfo: Data Enrichment Tool Comparison
- Apollo.io vs Seamless.AI: Data Enrichment Tool Comparison
Pricing and features verified as of February 2026. Visit Adapt.io and Seamless.AI for current information.
Frequently asked questions.
Frequently asked questions- Which is cheaper, Adapt.io or Seamless.AI?
- Adapt.io is cheaper for paid plans. Its Starter plan costs $49/mo for 500 email credits, while Seamless.AI's Basic plan costs $147/mo for 250 credits. Both offer free tiers, so you can test either platform at no cost. Adapt.io's Basic plan at $99/mo includes both email and enrichment credits, making it more cost-effective for teams with moderate data needs.
- Does Seamless.AI provide cell phone numbers?
- Yes, Seamless.AI offers email and cell phone lookups as a core feature of its platform. This capability distinguishes it from Adapt.io, which focuses primarily on business contact data and enrichment attributes. The real-time search engine in Seamless.AI enables users to find both email addresses and direct phone numbers for B2B contacts.
- What integrations do Adapt.io and Seamless.AI share?
- Both platforms integrate with Salesforce, HubSpot, Outreach, and Zapier. Adapt.io exclusively offers Zoho CRM and Marketo integrations, while Seamless.AI uniquely connects with SalesLoft, Pipedrive, and Microsoft Dynamics 365. Seamless.AI supports 7 total integrations compared to Adapt.io's 6, giving it slightly broader CRM and sales tool compatibility.
- How large is Adapt.io's contact database?
- Adapt.io provides access to 250M+ business contacts and 10M+ company profiles. The platform includes 3,000+ tech sector classifications and offers data enrichment with 50+ attributes per contact. This database size positions Adapt.io as a comprehensive option for teams requiring extensive contact coverage across industries and company sizes.
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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