Cardiio helps you measure your pulse (heart rate) using your phone camera, learn how the numbers relate to your general wellness, perform effective workouts to get in shape, and track your progress.
*** Featured on The Doctors (CBS), ABC News and more ***
MEASURE YOUR HEART RATE:
• Just hold your iPhone or iPad and simply cover the back camera with your finger to read your pulse
• See how your heart rate relates to your fitness and endurance
IMPROVE YOUR FITNESS:
• Built-in high-intensity circuit training exercises that only takes 7 minutes to complete
TRACK YOUR PERFORMANCE:
• Personal dashboard with history (daily, weekly and monthly)
• Save, edit, annotate, export your data (CSV)
HEALTH KIT INTEGRATION
• Save your heart rate measurements to the Apple Health app.
*Upgrade to PRO to enjoy the full features of the app!
Blood absorbs light. Every time your heart beats, the blood flow to your finger increases, causing more light to be absorbed. In between beats, less light is absorbed. By using your smartphone camera to capture tiny changes in reflected light from your finger, Cardiio can calculate your heart rate.
**IMPORTANT TIPS FOR BEST RESULTS
• ALWAYS hold your phone steady, keep still, and don’t talk during a measurement.
• Make sure your fingers are not cold.
• Cover the entire back camera lightly with your finger; Don't press too hard to avoid restricting blood flow to your finger.
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WHAT THE PRESS SAY
PC Magazine - "… the app is simple, yet beautiful and pretty slick."
Cult of Mac - "Cardiio is one of those apps that wows you..."
Lifehacker - "it’s a little mind-blowing..."
WARNING: NOT FOR MEDICAL USE
If knowing your pulse rate is critical to your health, you need to have your pulse taken by a medical professional. Cardiio is not intended to diagnose, prevent or treat any condition, or to be a substitute for professional medical care. Measurements and statistics are intended for informational and educational purposes only, to support general health and wellness. The Cardiio app has not been tested with individuals with health conditions, is not a clinical pulse oximeter and has not been cleared or approved by the U.S. Food and Drug Administration.
- Performance improvements
- Bug fixes
Ratings and Reviews
I tried several deferent apps , some ridiculously expensive, asking for yearly subscription (Don’t know what for). None of were as accurate as this Cardiio app. and I am using the FREE VERSION. For ONLY A ONE TIME FEE OF $9.99 you can add 6 or 7 more useful features, but if you decide to have the free version, that would be good enough, There would be No pop ups of advertisement or anything like that. I really like the fact that makers of this app are very honest people. Thank you.
I READ AMOUNG SOME REVIEWS THAT THE PULSE READER ONLY WORKS LIKE 5 PERCENT OF THE TIMES. TO ME, THAT IS A GOOD THING, BECAUSE IT WANTS TO MAKE SURE THAT THE READING OF PULSE IS ACCURATE . SPECIFICALLY IF YOUR FINGERS ARE COLD OR DIRTY OR THE CAMERA LENS IS DIRTY. BUT ON MY CASE IT WAS THE COLD FINGERS. JUST PLACE THE FINGER UNDER YOUR ARM FOR FEW SECOND TO GET WARM AND TRY AGAIN . FOR ME, IT WORKED EVERY TIME.
Doesn’t work with iPhone 11 Pro Max
Beware - this app simply doesn’t work with the flagship Apple iPhone 11 Pro Max. The problem seems to be the three cameras built into the iPhone 11 Pro Max. I contacted the help desk who in turn simply replied that I should read the directions. Either the help desk people don’t realize their own app directions are no longer up to date for current versions of iPhone, or I hope I’m wrong but perhaps they simply don’t care about customers of this app any longer. The app directions only refer to iPhones with a single camera. If it was just experimenting with placing my finger over one of the three cameras of the iPhone 11 Pro Max, or some combination of cameras, I wouldn’t have had to see if the help desk could actually “help” a customer.
If you’re using most any version of iPhone less than the iPhone 11 Pro Max, this app is fantastic and works well.
I hope the developer decides to update this app for Apple’s flagship iPhone.
I also hope the help desk procedures get updated to provide actual help to customers.
Been using for several years…
I put this app on my phone several years ago, and used it regularly, and when my AFib got better, I didn’t use it much. Then my heart went completely out of rhythm, and for a couple of months, I wore a monitor, had an ablation, and finally have it back in some semblance working order. I rely on Cardiio every day, several times a day just for a quick heart rate. I did not pay any extra, just have the free version and that is more than enough to keep my mind at ease. This is a great app, especially for my new iPhone SE, with just the simple camera. I keep an image of my reading, and have a folder of my daily readings! Thanks, Cardiio!!
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
- Cardiio, Inc.
- 70 MB
- Health & Fitness
- Requires iOS 16.6 or later.
- Requires iPadOS 16.6 or later.
- Requires macOS 13.5 or later and a Mac with Apple M1 chip or later.
English, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese
- Age Rating
- © Cardiio 2023
- In-App Purchases
- Full Pro Upgrade! $9.99
- Pulse Waveform Pack $7.99
- Hypothetical Life Expectancy Pack $4.99
- Specific Heart Rate Pack $4.99
- Calorie-Burn Estimator $4.99
- Target Heart Rate Pack $4.99
- Weekly Pro Upgrade $6.99
- Blood Pressure Tracking $6.99
- Remove Promo Banner $4.99
- Coach Max $1.99
Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.