Comparison

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.

Head to head
About

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.

Highlights
  • ECG recording analysis
  • Heart Rate Variability (HRV) tracking
  • PQRST calculation
  • Heartbeat signature analysis
  • Apple Health integration
Features
Currently charting
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

ECG+ | Your Watch ECG Reader4 screens
KardiaRx2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 4 level
ECG+ | Your Watch ECG Reader versus KardiaRx: the parameters behind the verdict, then further details
ParameterECG+ | Your Watch ECG ReaderKardiaRx
PriceFreeFree
Rating4.5 (2.6K ratings) — better4.3 (21 ratings)
Positive reviews64.3% of reviews — better0.0% of reviews
Number of ratings2.6K — better21
Update frequencyEvery 9 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#28 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.015.8 — better
Further details — not scored
Size61 MB143 MB
Age rating17+17+
DeveloperHeartworks Pty LtdAliveCor, Inc.

Customer experience

ECG+ | Your Watch ECG Reader

All ratings2,578 ratings
Positive87.1%
Neutral3.5%
Negative9.4%
Written reviews451 reviews
Positive64.3%
Neutral8.4%
Negative27.3%

KardiaRx

All ratings20 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

5 purchases

ECG+ | Your Watch ECG Reader

Subscriptions3
  • ECG+ PREMIUM$9.991 Month
  • ECG+ PREMIUM3 Days trial$59.991 Year
  • ECG+ PREMIUM Family$79.991 Year
One-time2
  • ECG+ PREMIUM (Lifetime)$199.99
  • ECG+ PREMIUM Family (Lifetime)$299.99
None

KardiaRx

No in-app purchases

Questions

Is ECG+ | Your Watch ECG Reader free?
ECG+ | Your Watch ECG Reader is free to download, with in-app purchases available.
Is KardiaRx free?
KardiaRx is free to download, with no in-app purchases.
Which has better reviews, ECG+ | Your Watch ECG Reader or KardiaRx?
ECG+ | Your Watch ECG Reader is rated higher. ECG+ | Your Watch ECG Reader averages 4.5 out of 5 from 2.6K ratings, while KardiaRx averages 4.3 from 21 ratings.
Do ECG+ | Your Watch ECG Reader or KardiaRx have ads?
Neither ECG+ | Your Watch ECG Reader nor KardiaRx shows ads.
Which is updated more often, ECG+ | Your Watch ECG Reader or KardiaRx?
ECG+ | Your Watch ECG Reader ships an update every 9 days, and KardiaRx every 3 months. Most recently, ECG+ | Your Watch ECG Reader was updated on November 11, 2026 and KardiaRx on November 7, 2026.

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