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Amazon SES vs Customer.io: 2026 Comparison

Amazon SES Customer.io
Overview Amazon's scalable cloud email service for sending transactional and marketing emails at extremely low cost. Automated messaging platform for tech-savvy marketers to create data-driven email, push, SMS, and in-app campaigns.
Pricing Pay-per-use ($0.10/1000 emails) Subscription ($100-custom/mo)
Key Features
  • Email sending
  • Receiving
  • Templates
  • Configuration sets
  • Dedicated IPs
  • Event publishing
  • Behavioral emails
  • Push notifications
  • SMS
  • In-app messages
  • Webhooks
  • Data pipelines
  • Workflows
Pros
  • Extremely affordable
  • Massive scale
  • AWS integration
  • Reliable
  • Powerful behavioral targeting
  • Multi-channel
  • Great for SaaS
  • Good data tools
Cons
  • Requires technical setup
  • Limited marketing features
  • No visual builder
  • Expensive
  • Requires technical setup
  • Steep learning curve

Amazon SES

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Customer.io

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