Breathe In.
Breathe Out.
Done.

With a simple and intuitive interface, O2 makes it easy to take a quick break to focus on breathing without distracting ads or subscriptions.

Created with you in mind

Focus on your breathing, not ads.

Start breathing exercises quickly and easily as soon as you open the app.

Track your progress over time with an intuitive overview of your breathing habits.

O2 works on iPhone, iPad, and Mac so you can practice focused breathing anytime.

And effortlessly sync settings and history between each device, so you can pick up right where you left off.

Beautifully adapts to dark mode on your device

Keep track of your time spent practicing focus breathing with simple indicators, graphs, and charts.