Dittofeed: Multi-Channel Customer Engagement (2.9k Stars)

Dittofeed is an open-source, multi-channel customer engagement platform with solid community traction.

Channels supported

It covers email, SMS, push, and in-app messaging from one interface. The open-source model appeals to teams that want full control over data and integrations.

Differentiator

Dittofeed focuses on multi-channel orchestration rather than single-channel blasting, making it easier to coordinate customer journeys.