ECG+ | Your Watch ECG Reader vs KardiaRx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ECG+ | Your Watch ECG Reader
This app enhances your Apple Watch ECG recordings by calculating PQRST to reveal your unique heartbeat signature. It also monitors Heart Rate Variability (HRV), an objective measure of physical readiness, and integrates with Apple Health.
- ECG recording analysis
- Heart Rate Variability (HRV) tracking
- PQRST calculation
- Heartbeat signature analysis
- Apple Health integration
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REAL stories, in their OWN words. I had an appointment with a cardiologist today. I printed my ECGs from this ECG+ app. The cardiologist's response was: "wow, this just saved us such an amount of time and research". He could immediately see the direction he should be looking further into. Hans_vdk · Belgium · 19 Mar 2024 ○ Accurate reading I am a retired Paramedic and can read ECGs very well. I knew I was having an irregular heart rhythm so I downloaded this ecg+ app and printed out my latest one lead ECG. I went to the Emergency Room with the print out, ecg+ was spot on and matched the 12-lead in the ER. The ER doc was quite impressed with the interpretation and print out. Code 3 2020 · United States · Retired Paramedic · 14 May 2024 =================== ECG+ analyzes your Apple Watch ECG to unlock the crucial cardiac details hidden inside, then creates a report with clear evidence of what happened, ready to bring to your doctor. Findings include patterns such as possible early, or premature, heartbeats, which some people notice around moments of sudden palpitations or skipped heartbeats, and burdens associated with premature beats and AFib. Most importantly, ECG+ tracks these findings for your peace of mind, so you know when things are under control or when your attention is needed, for example when premature beat burden is rising. ECG+ does not diagnose symptoms or medical episodes. Instead, it presents your recorded ECG data in a clearer, more structured way, so you can have a more informed and productive conversation with your doctor. Many users, including medical professionals, have found real value in ECG+. ○ Advanced readings to help your cardiologist Today I showed my doctor several ECGs derived from my Apple Watch through ECG+ and advanced data analysis. He was really impressed and helped answer a lot of my questions on PACs and PVCs. Apple ECG alone will not identify enough of what's going on. Highly recommend this app. MachKing · United States · 22 Mar 2024 ○ Very accurate As a CT ICU nurse of 34 years I find the readings on the EKG app to be surprisingly accurate! I'm very impressed with the quality of the telemetry given that it's from a watch on my wrist. It's also quite reassuring as I get older to know that it can automatically monitor for arrhythmia so I can be more proactive in following up with my physician on my heart health. Miramichigael · United States · CT ICU nurse, 34 years · 5 May 2024 [Intuitive designs] Every finding is marked directly on the ECG, with the supporting measurements laid out in one clear report: Premature beats - the skipped, extra or fluttering beats you actually feel Rhythm patterns - bigeminy, trigeminy, quadrigeminy, couplets and triplets, marked where they happen Premature-beat burden - how often abnormal beats occur, tracked over time QT / QTc interval measurements Heart Rate Variability (HRV) - with its trend, shown as a Poincaré plot AFib irregularity - the irregularly-irregular pattern that points to atrial fibrillation [HealthKit] ECG+ integrates with Apple Health through HealthKit, making it easy to access your Apple Watch ECG recordings without manual imports. [Disclaimer] ECG+ is not a diagnostic tool and does not provide medical advice. It is intended for informational and educational purposes only and is not a substitute for professional medical care. In an emergency, contact your doctor or emergency services immediately. Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula [Copyright Notice] ECG+ was originally designed and developed by Heartworks Pty Ltd. Original features, designs, and implementations within the app are protected by copyright. Unauthorized copying or imitation may infringe intellectual property rights. All rights reserved.
KardiaRx
This app works with an FDA-cleared EKG device to provide advanced cardiac monitoring. It allows users to capture medical-grade EKGs anytime, anywhere, detecting common arrhythmias in 30 seconds. Track your heart health data with accuracy trusted by doctors.
- Advanced cardiac monitoring
- Works with KardiaMobile 6L EKG devices
- Detects common arrhythmias
- Medical-grade EKG capture
- No patches, wires, or gels required
- Track heart health data
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KardiaRx is a prescription-only clinical application used under the direct supervision of licensed healthcare providers for remote cardiac monitoring and clinical trials. A connection code provided by a licensed healthcare professional is the only way to access KardiaRx. It integrates with the FDA-cleared KardiaMobile 6L hardware to record and transmit 6-lead EKGs to certified technicians and physicians for professional analysis. KardiaRx is not a direct-to-consumer application and does not provide automated self-diagnosis; all medical decisions and interpretations are strictly managed by the licensed healthcare providers. KardiaRx requires a KardiaMobile 6L device and a connection code to record an EKG. Always consult with your physician before making any medical decision, including altering your use of any drug or treatment. This application acts as a software component / companion to a regulated medical device. In strict compliance with international medical device regulations, global distribution is restricted exclusively to the twenty-five (25) countries where this device has received formal regulatory clearance or authorization. KardiaRx is available for download in Australia, Canada, Chile, Czech Republic, Denmark, Finland, France, Germany, Hong Kong, India, Italy, Malaysia, Netherlands, Norway, Poland, Portugal, Saudi Arabia, South Africa, Spain, Sweden, Switzerland, Taiwan, Thailand, United Kingdom, United States
Screenshots
Verdict
ECG+ | Your Watch ECG Reader and KardiaRx both sit at 4.5 stars, but that hides the real split: 64% of ECG+ | Your Watch ECG Reader's written reviews are positive against 0% of KardiaRx's. ECG+ | Your Watch ECG Reader also leads on update cadence (every 9 days vs every 3 months) and ratings volume (2.6K vs 21). KardiaRx's advantage is in-app purchases (none vs 5) and iOS requirement (15.8 vs 18.0). On price, rating, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ECG+ | Your Watch ECG Reader sells 5 in-app purchases, starting at $9.99 per month. KardiaRx asks for nothing beyond the download.
ECG+ | Your Watch ECG Reader holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: ECG+ | Your Watch ECG Reader has 2.6K ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 64% of ECG+ | Your Watch ECG Reader's written reviews are positive against 0% of KardiaRx's.
ECG+ | Your Watch ECG Reader ships an update every 9 days, KardiaRx every 3 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.
| Parameter | ECG+ | Your Watch ECG Reader | KardiaRx |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2.6K ratings) — better | 4.3 (21 ratings) |
| Positive reviews | 64.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 2.6K — better | 21 |
| Update frequency | Every 9 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #28 — better | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 15.8 — better |
| Further details — not scored | ||
| Size | 61 MB | 143 MB |
| Age rating | 17+ | 17+ |
| Developer | Heartworks Pty Ltd | AliveCor, Inc. |
Customer experience
ECG+ | Your Watch ECG Reader
KardiaRx
Bugs and requests
ECG+ | Your Watch ECG Reader
Reported bugs
3 issues- App not working or crashing
- Inability to set up or connect with Apple Watch
- Inaccurate readings or interpretations
Requested features
4 requests- Percentage of Long QT interval
- More customization options
- Ability to export data
- Improved user guidance and documentation
KardiaRx
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ECG+ | Your Watch ECG Reader
- ECG+ PREMIUM$9.991 Month
- ECG+ PREMIUM3 Days trial$59.991 Year
- ECG+ PREMIUM Family$79.991 Year
- ECG+ PREMIUM (Lifetime)$199.99
- ECG+ PREMIUM Family (Lifetime)$299.99
KardiaRx
No in-app purchases
Questions
Is ECG+ | Your Watch ECG Reader free?
Is KardiaRx free?
Which has better reviews, ECG+ | Your Watch ECG Reader or KardiaRx?
Do ECG+ | Your Watch ECG Reader or KardiaRx have ads?
Which is updated more often, ECG+ | Your Watch ECG Reader or KardiaRx?
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