Box breathing is a breathing technique used by the Navy Seals, sports professionals and others, which involves taking long deep breaths and holding them.
It has a number of supposed benefits, from reducing stress and anxiety, to improving blood flow, awareness, focus and attention.
While we’re not sure how sound the science is for all of that, it can certainly serve as a calming influence, and the app helps you get started.
It contains an instructional video to help you get the technique down, and then can guide you through the required breaths, with words or sound effects and visual indicators to tell you when to breathe in and out.
You can work through a number of levels, which adjust how deep a breath to take and how long to hold it, or just stick with the basics, and BoxBreathing also keeps a log of your breathing practice and can be set to remind you to do it daily.
There are even gamification features, with new ranks handed out for practicing a number of consecutive days. And all in all, the app is about as comprehensive as possible for such a simple technique, and justifies its price tag.