How it works

A four-minute breathing test, right on your phone

No clinic visit. No wearable. Just your phone's microphone, a short guided test, and a clear result you can act on.

The screening test

Three phases, one clear score

  1. 1

    Breathe relaxed

    Sit comfortably and breathe normally while the app listens. This captures your natural resting pattern.

  2. 2

    Hold your breath

    A short, guided breath hold gently challenges your control system so it reveals how it responds.

  3. 3

    Recover

    The app measures how quickly and smoothly your breathing settles back to baseline afterwards.

  4. 4

    Get your BCI

    You receive your Breathing Control Index and, if helpful, a personalized training program.

Your result

What the Breathing Control Index tells you

The BCI is a simple summary of how stable your breathing control is. A steadier result suggests well-regulated breathing; a less stable one may mean you'd benefit from training.

Stable

Your breathing control looks steady. Keep an eye on it over time and use BreatheSimple to maintain healthy habits.

Borderline

Some signs of instability. A short, personalized program is designed to help nudge your control system toward steadiness.

Unstable

Clearer signs your breathing control over-reacts. Training may help — and it's a good prompt to talk with a clinician about your sleep and breathing.

BreatheSimple is a screening and wellness tool, not a medical device. It does not diagnose or treat any condition.

Personalized training

From a number to a program

If your screening suggests training would help, BreatheSimple builds a personalized guided breathing program. Sessions are short, structured, and designed to gradually retrain the control system behind steadier breathing — drawing on neuroplasticity rather than forcing change from the outside.

You only move to the paid program if your results indicate you'd benefit. Screening and your BCI are always free.

Join the waitlist

  • Personalized. Built around your screening result, not a generic plan.
  • Short sessions. Designed to fit into a normal day.
  • Progress over time. Re-screen to see how your control is improving.
  • No hardware. Everything runs on the phone you already own.

Be first in line

Join the waitlist

Get early access to the BreatheSimple app and your free Breathing Control Index. We'll email you when screening opens in your region — no spam, ever.

We use your email only to tell you when BreatheSimple is available.