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Amplitude vs GMass: 2026 Comparison

Amplitude GMass
Overview Amplitude is a digital analytics platform that helps companies understand user behavior across their products. It specializes in behavioral analytics with powerful cohort analysis and experimentation capabilities. 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 ($0-2000/mo) Freemium ($0-55/mo)
Key Features
  • Behavioral analytics
  • funnel analysis
  • retention analysis
  • user segmentation
  • experimentation
  • predictive analytics
  • journey mapping
  • collaboration tools
  • Gmail-based sending
  • mail merge
  • automatic follow-ups
  • email tracking
  • campaign reports
  • scheduling
  • Google Sheets integration
Pros
  • Excellent behavioral analytics
  • Strong free tier
  • Great visualization tools
  • Powerful cohort analysis
  • Works inside Gmail
  • Very easy to use
  • Affordable
  • Great Google Sheets integration
Cons
  • Complex setup for advanced features
  • Can be expensive at scale
  • Steep learning curve
  • Event taxonomy requires planning
  • Gmail sending limits apply
  • Limited advanced features
  • No multi-channel support