caffeinate

The premium Open Source alternative to Customer.io

🎯 Best for:Rails developers

What is caffeinate?

A Ruby on Rails engine designed for managing time-based drip email sequences and scheduled mailers. It provides a state-machine based engine for managing subscriber progression through mailer sequences.

Tech Stack
RubyBackend & Auth

Why caffeinate?

  • Native Rails integration
  • Database-backed
  • Flexible logic

Limitations

  • Ruby only
  • No visual editor
  • Developer-centric
2/13/2026
Last Update
20
Forks
10
Issues
MIT
License
Financial Leak Detected

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Competitor Cost
-$1,440
/ year (est. based on Customer.io)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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