Flow vs. Kantree vs. Duet

Flow is an online collaboration platform that makes it easy for people to create, organize, discuss, and accomplish tasks with anyone, anytime, anywhere. By merging a sleek, intuitive interface with powerful functionality, we're out to revolutionize the way the world's productive teams get things done.

Kantree is a collaborative Web application that let you organize any kind of information and set up processes and methodologies that best suit your teams and projects.

Duet is an intuitive project management app created specifically for freelancers and small businesses. Duet does not have a monthly fee. Instead, it is available for a one time fee of $49