BurnChurn - 🔥 Reduce churn and track exit feedback for your SaaS
Customer.io - We make it easy to send emails triggered by user behavior. Build, measure and improve your emails to activate and retain users
Postmark - Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.
CHURN.FM - The podcast for subscription economy pros tackling churn
Brickbox - Customer acquisition tools for indie makers
ClearBrain - Predict which users will upgrade or churn tomorrow.