Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
MuleSoft Anypoint Platform - Anypoint Platform is a unified, highly productive, hybrid integration platform that creates an application network of apps, data and devices with API-led connectivity.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Boomi - The #1 Integration Cloud - Build Integrations anytime, anywhere with no coding required using Dell Boomi's industry leading iPaaS platform.
Slack - A messaging app for teams who see through the Earth!
Jitterbit - Jitterbit is an open source integration software that helps businesses connect applications, data and systems.