Breathe Pacer

Support & help for the Apple Watch breathing app

Breathe Pacer guides paced breathing exercises on your Apple Watch and shows your heart rate as you go. This page explains how to use it and answers common questions.

Getting started

• Pick a technique — Box (4-4-4-4), 4-7-8, or Coherent (5-5).
• Set your cycles — anywhere from 1 to 1008, or tap a preset (9, 27, 108, 1008).
• Press start and follow the circle — it grows as you breathe in and shrinks as you breathe out.
• Breathe with your eyes closed — a wrist tap marks every phase change, so you don't need to watch the screen. A longer triple-tap marks each set of 108 cycles.
• Review your session — the summary shows duration and your heart rate average, range, and change from start to end.

Frequently asked questions

My heart rate shows "--" during a session

Breathe Pacer needs permission to read your heart rate. On first launch it asks for Health access — if you declined, you can turn it on in the iPhone Health app under Sharing › Apps › Breathe Pacer, or in Settings › Privacy & Security › Health. Also make sure the watch is worn snugly on your wrist, since a loose fit prevents heart-rate readings. The app works either way — without permission it simply shows no reading.

How do I turn Health access on or off?

Open the Health app on your iPhone, tap your profile, choose Privacy › Apps, select Breathe Pacer, and toggle the data types. You can also revoke access at any time.

Are my long sessions going to drain the battery?

Longer sessions (for example 1008 cycles) keep heart-rate tracking active the whole time, which uses more battery — similar to a long workout. Starting from a good charge is a good idea for extended practice.

Does the app collect or share my data?

No. Breathe Pacer has no accounts, no ads, and no tracking, and your health data never leaves your device. See the privacy policy for details.

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