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Attio vs GMass: 2026 Comparison

Attio GMass
Overview A next-generation CRM that automatically builds itself from your data with powerful customization and real-time collaboration. GMass is a mass email and cold outreach tool that works directly inside Gmail. It turns Gmail into a powerful email marketing and outreach platform with mail merge, automatic follow-ups, and campaign analytics.
Pricing Freemium (Free-$79/user/month) Freemium ($0-55/mo)
Key Features
  • Automatic data sync
  • Custom objects
  • Real-time collaboration
  • Email integration
  • Reporting
  • Workflow automation
  • Enrichment
  • API-first design
  • Gmail-based sending
  • mail merge
  • automatic follow-ups
  • email tracking
  • campaign reports
  • scheduling
  • Google Sheets integration
Pros
  • Modern and flexible architecture
  • Excellent data model
  • Real-time multiplayer
  • Beautiful design
  • Works inside Gmail
  • Very easy to use
  • Affordable
  • Great Google Sheets integration
Cons
  • Still maturing feature set
  • Smaller integration library
  • Limited marketing tools
  • Newer with less track record
  • Gmail sending limits apply
  • Limited advanced features
  • No multi-channel support