Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.

ChurnBuster - Stop Losing Money toFailed Payments in Stripe. Churn Buster saves you thousands of dollars every month by ensuring your customers update their payment information.

MJML - The open source framework for responsive emails

ClearBrain - Predict which users will upgrade or churn tomorrow.

Stripo - Stripo is an all-in-one email design platform. We enable our clients to build emails of any complexity, including interactive AMP emails, really fast and easy.

ChurnTarget - ChurnTarget helps you reduce your SaaS churn by targeting customers that will soon churn. Using intelligent churn prediction, we will alert you on the customers that are at risk of churning, so you can reach out to them and prevent them from leaving.