Oscalm: Breathing Exercises

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About this app

Five minutes to slow down.

The circle grows, you breathe in. It shrinks, you breathe out. A sound and a light vibration mark each change, so you can keep your eyes closed.

FOUR RHYTHMS TO CHOOSE FROM
A cycle always lasts ten seconds, which makes six breaths a minute. Only the split between breathing in and out changes.
• Relax: 4 s in, 6 s out. A longer exhale helps you unwind.
• Balance: 5 s in, 5 s out. The standard cardiac coherence rhythm.
• Energize: 6 s in, 4 s out. Good in the morning, or when you're low on energy.
• Sleep: 3 s in, 7 s out. Do it in bed, before you fall asleep.
You can also set your own timings and the length of the session.

DAILY REMINDERS
Pick one or more times, and Oscalm reminds you every day to take a moment to breathe.

AN APP THAT ASKS NOTHING OF YOU
I made it for the days when you're tired or stressed. There's no streak to keep and no goal to hit: you open it, breathe for five minutes, and you're done.
• The session starts in one tap
• Four rhythms, or your own, set to the second
• A sound and a vibration at each change, so you can practise with your eyes closed
• Daily reminders at the times you choose
• No streak of days to keep up

THE 3-6-5 METHOD
Cardiac coherence is often practised three times a day, morning, midday and evening, for five minutes. Three reminders are enough to keep the routine.

Oscalm is free.

GOOD TO KNOW
Oscalm helps you relax, but it is not a medical device: it doesn't diagnose or treat anything. If you're going through burnout, depression or a period of intense stress, talk to a doctor.
Five minutes to slow down: cardiac coherence breathing, even with eyes closed.
Updated on
Nov 6, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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What’s new

New: a short tutorial on cardiac coherence.
• Learn in 1 minute how slow breathing calms your heart
• See how to follow the circle, then try 3 guided breaths
• Pick the rhythm that fits your day and start breathing
Watch it again anytime from Settings.
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Everyone
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About the developer
Raphaël Bertin
r4phab@gmail.com
2 Rue de Longuet 88200 Saint-Nabord France