Laudspeaker is an open-source customer engagement and onboarding platform that offers a visual journey builder for creating complex workflows. It provides multiple messaging channels like email and SMS to nudge users towards completing specific actions. Users can track progress and personalize journeys for different personas. The platform is event-triggered, focused on scalability, and supports various channels like email, SMS, and Slack. Laudspeaker is in the Public Alpha stage, and contributors are welcome to join their Slack channel. The software is released under the AGPL-3.0 license. Unique features include its multi-channel approach and integration with the Modern Data Stack.
https://github.com/laudspeaker/laudspeaker