Pust

Pust displays a breathing circle on top of all your other apps,
guiding you through 48 seconds of box breathing.

Pay what feels right. Once.

Choose any amount you want. Pay once, with no subscriptions or renewals.

Get macOS app

Native to macOS

Written in Swift. Weighs less than a screenshot (2MB). Zero CPU drain when idle.

of us have "Screen Apnea."

Research shows the vast majority of people unconsciously hold their breath or breathe shallowly while checking email or working, leading to a "fight or flight" response.

Linda Stone, Former Apple/Microsoft Executive Research

Reduction in Cortisol levels.

Diaphragmatic breathing (like the Pust circle) is clinically proven to lower salivary cortisol—the primary stress hormone—within minutes of practice.

Ma et al., Frontiers in Psychology, "The Effect of Diaphragmatic Breathing on Attention"

micro-breaks restore focus.

Brief diversions from a task drastically improve performance on that task for the next hour. You don't need a long break; you just need a moment.

University of Illinois at Urbana-Champaign, Dept. of Psychology

View a demo of the breathing exercise below

Take a deep breath

Hold it for 4 seconds

Now, exhale slowly

box breathing is a simple way to calm your nervous system.

inhale