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Attio vs Seamless.ai: 2026 Comparison

Attio Seamless.ai
Overview A next-generation CRM that automatically builds itself from your data with powerful customization and real-time collaboration. Seamless.ai is a real-time search engine for B2B sales leads that uses AI to find verified contact information. It helps sales teams build accurate lead lists with phone numbers and email addresses.
Pricing Freemium (Free-$79/user/month) Freemium ($0-147/user/mo)
Key Features
  • Automatic data sync
  • Custom objects
  • Real-time collaboration
  • Email integration
  • Reporting
  • Workflow automation
  • Enrichment
  • API-first design
  • Real-time contact search
  • email finder
  • phone numbers
  • Chrome extension
  • CRM integration
  • list building
  • buyer intent
Pros
  • Modern and flexible architecture
  • Excellent data model
  • Real-time multiplayer
  • Beautiful design
  • Large database
  • Real-time verification
  • Good phone numbers
  • Easy to use
Cons
  • Still maturing feature set
  • Smaller integration library
  • Limited marketing tools
  • Newer with less track record
  • Aggressive sales tactics
  • Data accuracy inconsistent
  • Pushy upselling