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Customer.io vs Sendy

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Customer.io compared with Sendy
DetailCustomer.ioSendy
What it doesCustomer engagement platform for creating personalized journeys and better business outcomes Send Newsletters Without SaaS Lock-In
StageEstablished Established
Founded2012 Not given
Based inNot given Not given
Pricing modelsubscription one-time
PricingNot given Sendy software for $69 one-time fee. Bundle with AI Assistant for $39 (regular $49). Installation service for $79. Email sending via Amazon SES costs $1 per 10,000 emails.
Key features
  • Journey automation with visual workflow builder
  • Real-time audience segmentation
  • AI-powered message design and content generation
  • Multi-channel messaging
  • Data integration and unification
  • Analytics and conversion tracking
  • AI Agent for automation configuration
  • A/B and multivariate testing
  • Drag & drop email editor
  • Live campaign reports
  • AI Assistant for generating newsletters and subject lines
  • List segmentation
  • Autoresponders and drip campaigns
  • White-labeled client accounts
  • Custom fields and personalization
  • Bounce and complaint handling
  • Rules and webhooks
  • Third-party integrations and Zapier
What makes it different
  • AI Agent built directly into the platform for natural language automation
  • Unified platform combining data, messaging, and AI in one orchestration layer
  • Open platform design with full API access for agents and tools
  • Intelligence that compounds through optimization of each message
  • Enterprise-grade infrastructure with 99.98% platform uptime
  • Self-hosted with no lock-in or dependency on external platforms
  • Uses Amazon SES for reliable email delivery infrastructure
  • No limits on subscriber count or emails sent
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)81 no change since last check75 no change since last check
Trust Flow (Majestic)3836
Citation Flow (Majestic)5341
Referring domains (Majestic)69804399

5 details filled in for both companies.

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