Phasic breathing - or cardiac resonance - is a breathing technic that brings balance to your nervous system by syncing your cardiac activity and your breathing patterns.

We use your heart rythm with HealthKit in order to estimate your cardiac activity and compute the best breathing pattern for you.

Like in music, we use an harmonic system : your harmonic is the number of heart beats during a breathing period (inhale and exhale).


Before a breathing exercice, define the harmonic that fits you best. You will be able to tune it during the exercice with the digital crown of your Apple Watch.

Follow the visual guide and the haptic feedback on your wrist to increase mindfulness, focus and learn how to reach a state of flow.

Together, let’s grow with FLoW.