Blood pressure app BreathNow 12+

Breathing,pulse&stress monitor

Cardio Calm Ltd

Designed for iPhone

    • 4.7 • 1K Ratings
    • Free
    • Offers In-App Purchases


Lower blood pressure & pulse. Stress monitor for Apple Watch. Do breathing exercises & meditation to lower anxiety and heart rate. Share BP log with your doctor

BreathNow is a powerful blood pressure app and stress monitor which helps to relax and lower heart health risks with breathing exercises, meditations and more. Includes cardio fitness test from the University of Cambridge. Requires external blood pressure monitor to take blood pressure readings.

Key app features:
Measure heart rate, stress and cardio fitness with your phone’s camera.
Track and lower blood pressure and pulse with calming activities, no meds
Get daily cardio insights and manage heart health risks
Perform slow breathing and meditate to lower anxiety, BP and stress
Fall asleep easily with guided breathing on Apple Watch
Easily measure which relaxation techniques worked best for you
The main advantage of BreathNow blood pressure app is that it is not only a blood pressure & heart rate monitor and stress monitor. It also provides practical tools to lower blood pressure and heart rate with meditation, slow breathing and more. It alerts you to key heart risk areas and suggests activities to lower these risks.

Measure heart rate, stress and cardio fitness (VO2Max) with your phone’s camera, no external sensors needed. Our cardio fitness (VO2Max) test is developed by scientists from the University of Cambridge. Do breathing exercises or meditate. Measure stress again and see which exercises worked best for you.

Enter your blood pressure data manually or connect your external blood pressure monitor to Apple Health via Bluetooth and analyse what activities helped you to lower blood pressure. Your data are stored securely in Apple Health and you may print them out or share remotely with your doctor.

BreathNow alerts you to important cardio signals like elevated heart rate, blood pressure, and irregular heart rhythm (also known as Afib) and low blood oxygen level if it is detected by your Apple Watch.

If BreathNow identifies a risk area from one of the daily indicators, it will suggest a user to perform an activity from an extended list to reduce a heart health risk. Choose between: slow breathing, meditation, acupressure, calming music, yoga and other activities. The list of breathing exercises includes lower BP breathing, 4-7-8 meditation breathing exercise, IMST breathing exercise, box breathing etc.

Connect your blood pressure monitor to Apple Health for automatic data download or enter blood pressure monitor readings manually.

Use Apple Watch to perform breathing exercises discreetly, without looking at the screen of your phone. No need to switch off your Apple Watch as it will fall asleep automatically after you do.

BreatheNow blood pressure app features:
+ Free heart rate and stress monitor for iPhone and Apple Watch
+ Free blood pressure tracker
+ Free daily heart risk insights
+ Free cardio fitness test from the University of Cambridge
+ Free breathing exercise to lower blood pressure for iPhone and Apple Watch
+ Free instructional videos to lower heart health risks
+ Plan to lower blood pressure
+ Broad selection of meditation and other activities to lower anxiety, BP, stress and pulse
+ Reminders
+ Your data stored securely in Apple Health

Terms of Use

Privacy Policy

Supports iPhone with iOS14 and above.

We offer auto-renewing in-app subscriptions for a Pro version which includes all heart rate meditation, breathing exercise app, meditation breathing exercise. Payments will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews at the end of the period unless cancelled by the user.

PLEASE NOTE: Heart rate monitor results may differ from heart rate measured by a medical device. BreathNow blood pressure app requires an external blood pressure monitor for taking blood pressure readings.

DISCLAIMER: BreathNow blood pressure app does NOT provide medical diagnosis or treatment advice. Please seek doctor's advice for any medical decisions.

What’s New

Version 2.1.15

Minor bug fixes

Ratings and Reviews

4.7 out of 5
1K Ratings

1K Ratings

Rebecca Pi ,

Lowers my blood pressure

I have struggled with high blood pressure for years. Medications were not working, and the side effects were debilitating. I heard about the FDA approved device to teach you how to breathe to lower BP, but it is expensive and my insurance wouldn’t cover it. I did some digging and found this app. It’s amazing! At first I got light headed and felt kind of sick doing the breathing exercises. But I slowed down and did less time each day for a few weeks. I also practiced the breathing exercises at other times during the day. I’m now up to 2 minutes/ day on the app doing the exercise to lower BP, plus other times on the other exercises. My BP went from high to normal in a couple of months without medication! I am also taking hibiscus and hawthorn supplements. The combination is working SO much better than medication and without the side effects! Thank you!!

Developer Response ,

Hello Rebecca, really appreciate your feedback! What is the main thing which you would like us to change in the app to make it even more useful?

minsk1994 ,

Terrific Update!

This tracker is an excellent update! Thank you for it! With this new feature it is really easy to manage heart risks within daily insights. In addition i can share this important information with my doctor via email. I like this application as combination of simple and affordable exercises helps me to lower my BP and anxiety. Thank you for the project, it works very well!

Developer Response ,

Hello, thanks for your feedback! What is the one thing you would suggest us to change to make BreathNow even better?

GalChau ,

Easy and powerful

Excellent minimalistic and very user-friendly application. If you have already realized the importance of breathing, and what a life-changing power you acquire if you begin to control it for at least a few minutes a day. The best trainer of mindfulness and attention is breathing exercises. And as easy as powerful it is a great dumbbell for this exercise.

Developer Response ,

Hi, thanks for your feedback



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App Privacy

The developer, Cardio Calm Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Usage Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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