Casbu

An email alternative that allows anyone to quickly and elegantly make decisions, visualize message priority and pause communication without missing time-sensitive information.

Sort Messages by Urgency

Intuitive color grading lets you know when questions need answers.

Control Subjects

Concise subjects reflect the actual content of questions.

Manage Contacts

Set who can contact you, and about what.

Set Limits

Limit your hours of contact without worrying: time-sensitive information will still get through.