Calm - Heart Rate & Breathing

Camera pulse, guided breathing, HR trends—private on‑device. Premium unlocks everything, ad‑free and for a lifetime.

You check in with your body in minutes: measure pulse using your phone camera, follow guided breathing sessions, and see simple trends over time—without turning heart health into a chore.

What you’ll do in the app

Pulse check (camera‑based): Get a quick reading with a clear waveform and practical guidance so you can improve signal quality when you’re moving or in low light. Guided breathing: Structured sessions (including box‑style pacing) designed to help you downshift stress and wind down before sleep. Trends: Track patterns like resting heart rate direction so changes feel meaningful—not noisy single points. Built for privacy Your readings and activity stay on your device. There’s no account required to use the core experience—your data isn’t shipped to a social graph.

Premium access Calm is designed as a focused, premium experience. Unlock full access to use the app’s complete toolkit—clean UI, ad‑free flow, and the features you need in one place. Pay once and use for a lifetime.

Important note (wellness, not medicine) Calm is a wellness tool, not a medical device, and isn’t intended to diagnose or treat any condition. If you have health concerns, talk to a qualified clinician.

Who it’s for

People who want a fast pulse check during stressful days Anyone building a breathing habit with clear pacing People who like simple trends instead of overwhelming dashboards