Apollo.io vs Seamless.ai

Detailed comparison between Apollo.io and Seamless.ai. Which one to choose for your project?

Our verdict

Apollo.io wins this comparison with a rating of 4.5/5. Apollo.io stands out for its free plan with 60 verified emails/month to test.

Head to Head

Our recommendation

Apollo.io

The all-in-one AI sales intelligence platform

4.5/5 (7,800 reviews)
Price
Free plan available
Key features
  • Multi-criteria search across 275M contacts and 73M companies with verified data
  • AI-generated personalized emails from LinkedIn profile and intent signals
  • Automated email + LinkedIn + call cadences with AI branching
  • AI transcription, analysis and coaching on calls and meetings
Try Apollo.io

Seamless.ai

Find any prospect with real-time AI

4.5/5 (5,775 reviews)
Price
Free plan available
Key features
  • Real-time email and phone search
  • Company data (size, revenue, tech stack)
  • Enrichment from LinkedIn and the web
  • Salesforce, HubSpot, Outreach integration
Try Seamless.ai

Apollo.io β€” Pros and Cons

Pros

  • Free plan with 60 verified emails/month to test
  • Largest database on the market at an accessible price
  • AI Email Writer rivaling Lavender and Lemlist
  • Complete multichannel sequences (vs separate ZoomInfo + Outreach)
  • Native integrations with Salesforce, HubSpot, Gmail, Outlook

Cons

  • Email quality sometimes lower than ZoomInfo
  • Interface can feel overwhelming for beginners
  • Credit limits on lower plans
  • Slow customer support on lower tiers

Seamless.ai β€” Pros and Cons

Pros

  • Massive and up-to-date contact database
  • Real-time data verification
  • Very practical Chrome extension
  • Free plan to try

Cons

  • High price on paid plans
  • Slightly dated interface
  • Limited credits even on paid plans

Our choice: Apollo.io

The all-in-one AI sales intelligence platform

Try Apollo.io