Steer the dial

Fast breathing and inhales tilt you toward arousal; slow breathing and long exhales tilt you toward calm. Aeolian gives you a real-time pacer and honest guidance so you can pick the outcome you want, dose it, and notice what your body reports back.

The techniques

Twelve breaths

From the physiological sigh and 4·7·8 to resonance, box, Bhramari, and Ujjayi, across four modes: downregulate, balance, upregulate, and journey.

The pacer

Breathe along

A real-time, real-clock breathing pacer with gentle sound and haptic cues, so you can practice with your eyes closed.

The evidence

Named science

Every technique carries a deep-dive with real citations and measured claims, alongside clear, prominent safety guidance.

Made yours

Yours to tune

Ten themes, five motion levels, real sound and voice cues, guided journeys, and a family mode, with the whole app in forty-two languages.

Aeolian home screen with the tree, sun, and Breathe button

Aeolian practice screen listing breathing techniques

Yours, and only yours

Aeolian works fully offline. There is no account, no sign-in, no servers, no analytics, and no tracking. Your practice history, your settings, even your heart-rate readings stay on your device, and nowhere else. Nothing to breach, nothing to sell, nothing to leak.

Fully offline No account No servers No tracking Stays on your device

Rigorous, and open

Breathwork lives between two worlds, the peer-reviewed science and the long traditions of practice that arrived at many of the same places first. Aeolian tries to honor both. It leans on real human research and keeps its claims measured, it respects what the old lineages got right without pretending everything is settled, and it always names what is proven and what is still promise.

Balban 2023 · Zaccaro 2018 · Lehrer & Gevirtz 2014 · Ma 2017 · Kox 2014