Cloudbeds - Cloudbeds is the platform that powers hospitality, enabling tens of thousands of lodging businesses in more than 150 countries worldwide to grow and thrive.

Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.

Guesty - Guesty is a cloud based software program that is designed to make owning and running an Airbnb or other vacation rental home easier.

Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.

Elina - Elina is a web-based property management system designed to manage operations, profitability, and overall guess experience.

Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES