# Card/io - Heart Monitoring — Remote Heart rate Tracker > Touchless remote heart rate, respiratory rate, and stress monitoring via radar sensor. (iPhone/iPad app by Advanced TeleSensors Inc.) - Source: https://appshunter.io/ios/app/cardio-heart-monitoring/id1548710257 (this page in markdown: same URL + `.md`) - Developer: [Advanced TeleSensors Inc](https://appshunter.io/developer/1548710259) - Category: Health & Fitness - Price: Free - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 13.4 · 33 MB - Languages: American English - Released: 2021-01-28 - Data updated: 2026-08-16 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/cardio-heart-monitoring/id1548710257/reviews.md ## What is Card/io? The Cardi/o App pairs with our groundbreaking sensor technology to allow you to monitor your heart rate without needing any kind of watch or wearable device. Our simple wall mounted sensor tracks your Heart Rate, HRV & Respiratory Rate, even while you’re sleeping, and sends the data direct to your smart phone using our app. And even better, you can set it to get text alerts to your phone through this app within a minute if your heart rate dips or spikes outside certain levels. How Does It Work? ​​Each Cardio.io Sensor uses radar technology originally developed by NASA’s Jet Propulsion Labs - the same place responsible for the missions to Mars and other exciting space exploration. Mars is MILLIONS of miles away from earth… so it’s very important they have accurate radar. The way it works in your home is that the wall-mounted sensor scans the whole room with a constant radar wave. The radar is sensitive enough to pick up the tiniest vibrations in your body, and as a result it can detect your heart rate. It can cover an average-sized room (10 feet by 10 feet), and tracks the heart rate of most people flawlessly. If you or an elderly relative would benefit from continuous heart rate monitoring, this is your ideal non-wearable solution. Not only that, but Cardi/o also monitors your Respiratory Rate (Breaths per minute) and your Stress levels, by tracking your Heart Rate Variability. Whether you’re looking to monitor your own health, or the health of a family member, it’s now possible to do it remotely and have all the data sent direct to your smart phone. Benefits of Cardi/o: Touchless Heart Rate Touchless Respiratory Rate Touchless Stress (Heart Rate Variability/HRV) Real-time Alerts Radar sensor No Cameras, preserving privacy Wall or corner mount WiFi-Cloud Connected Single-user monitor Connect from anywhere with iOS App. Who Is It For? The heart rate tracking from the Cardio.io sensor is helpful for anybody who wants to track their heart long term. It’s ideal for the elderly, those with health challenges, or anybody who wants greater insights into their daily wellness. Having an ongoing view of heart rate levels is very helpful from a health perspective, because your heart rate can be like a barometer for overall health. Why Is A Heart Rate Monitor A Good Indicator Of Overall Health? Well, there’s a reason they use heart rate monitors to track your health - the rhythm of your heart is your number one indicator of how your body is functioning! Dips and rises can be early warning signals for all kinds of things. Even simple things like having a cold or feeling a little unhappy or stressed can increase or lower your resting heart rate by a measurable amount. Why? Because your body sometimes has to “rev the engine” to get your immune system fired up to fight it… … or in cases with the heart rate dipping, it can be a sign of many other problems. Do you think it would be easier to get help if you knew within a minute there was a heart abnormality? Of course it would! It Can Even Track Sleep, Too! Our radar system is so accurate that not only does it track your heart rate, it can track sleeping habits too. The number of breaths somebody takes while they’re asleep is a great indicator of health, and can be a very useful early warning indicator of abnormalities. This means that you’ll be able to track sleep in exactly the same way you can track heart rate - through an app on your phone. No wearables or any other complication are necessary. Just our simple wall-mounted sensor and this app. If you’re a health conscious individual or you want to stay on top of a loved-one’s health levels without having to be with them 24/7, this is the best way to do it. Download the app today, and start your own health revolution! ## Key features - Touchless heart rate monitoring - Touchless respiratory rate monitoring - Touchless stress level tracking (HRV) - Real-time heart rate alerts - Radar sensor technology - Privacy-preserving, no cameras ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/cardio-heart-monitoring/id1548710257/reviews.md ### 5/5 — Useful app to monitor your great rate *2022-02-20* Cardio can monitor your great rate and breath rate remotely without a wearable. It needs Cardio hardware to function. ## Frequently asked questions about Card/io ### How does Card/io monitor heart rate without a wearable? Card/io uses a wall-mounted radar sensor, originally developed by NASA, to detect tiny vibrations in your body caused by your heartbeat. This allows for touchless monitoring without any devices worn on the body. ### What health metrics does Card/io track besides heart rate? In addition to heart rate, Card/io also monitors your respiratory rate (breaths per minute) and your stress levels by tracking Heart Rate Variability (HRV). This provides a more comprehensive view of your physiological state. ### Can Card/io alert me to critical heart rate changes? Yes, you can set up text alerts through the app to notify you if your heart rate dips or spikes outside of pre-defined levels. These alerts can be sent to your phone within a minute of the change. ### Is Card/io suitable for elderly individuals? Card/io is an ideal non-wearable solution for elderly relatives who would benefit from continuous heart rate monitoring. It offers a simple way to keep track of their health remotely. ### Does Card/io use cameras to monitor users? No, Card/io prioritizes privacy by using radar technology and does not employ cameras for monitoring. The sensor scans the room with radar waves to detect physiological signals. ### What is the coverage area of the Card/io sensor? The wall-mounted sensor can cover an average-sized room, approximately 10 feet by 10 feet. It is designed to track the heart rate of most people within this range flawlessly. ### How often is Card/io updated? The latest version of Card/io is 1.1.272, and it was last updated on May 20, 2026. This indicates a commitment to ongoing development and improvements for the application. ### What devices is Card/io compatible with? Card/io is available for iOS devices, specifically iPhones and iPods. It allows you to connect from anywhere with the iOS app to view your monitored data. ## Version history (last 5 releases) ### 2.1.19 — 2026-08-11 * API Improvement * Crash Fix * Performance Improvement ### 2.1.16 — 2026-07-30 * Made UI Changes to optimise the Display * Performance Improvement ### 2.1.2 — 2026-06-13 * Migrated the API to use new endpoint which is faster * UI Changes ### 1.1.272 — 2026-05-20 * API Improvments ### 1.1.271 — 2026-05-13 * UI Changes * API improvment ## Apps similar to Card/io | App | Rating | Price | Category | | --- | --- | --- | --- | | [Heart Rate Monitor: HR Monitor](https://appshunter.io/ios/app/heart-rate-monitor-hr-monitor/id1573780982) | 4.6 (10) | Free | Health & Fitness | | [VC Install](https://appshunter.io/ios/app/vc-install/id1659437489) | — | Free | Health & Fitness | | [Caspar Family](https://appshunter.io/ios/app/caspar-family/id6467743112) | — | Free | Health & Fitness | | [Pulse HR](https://appshunter.io/ios/app/pulse-hr/id1631423199) | — | Free | Health & Fitness | | [TRKD Wellness](https://appshunter.io/ios/app/trkd-wellness/id1456568603) | 5.0 (1) | Free | Health & Fitness | | [Pontosense Care](https://appshunter.io/ios/app/pontosense-care/id6738771620) | 1.0 (1) | Free | Health & Fitness | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*