Google ARCore - Google Augmented Reality SDK
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.
ZapWorks - ZapWorks is the complete augmented reality toolkit for agencies and businesses who want to push the boundaries of creativity and storytelling.
Lavagna - OpenSource project management tool designed for small teams.
Vuforia - Leading Augmented Rreality platform.
productboard - Beautiful and powerful product management.