Comparison

MyZio vs ECG+ | Your Watch ECG Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MyZio

Log your symptoms and track your ECG monitor's shipping status. Access helpful information and instructional videos to guide you through your monitoring experience.

Highlights
  • Log and edit symptoms
  • Track monitor shipping status
  • Register Zio ECG monitor
  • Access Zio service information
  • View instructional videos
  • Create MyZio account
Currently charting
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MyZio® is the perfect companion app to the Zio® ECG monitor. Use the app to track your monitor’s shipping status*, enter your symptoms, and access helpful information.​ ​ Key Features:​ • Signup for a MyZio account anytime.​ • Track your monitor’s shipping status.*​ • Seamlessly add your Zio ECG monitor to your account and start logging symptoms.​ • Enter your symptoms, then view and edit them as needed.​ • Access helpful information and instructional videos for using your Zio ECG monitor.​ • Content available in English and Spanish (adjust language settings in Profile screen).​ *Feature not available outside the U.S.​ Safety Info: https://app.myzio.com/zio-at-safety and https://app.myzio.com/zio-mon-safety​ MAT-0326-1

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
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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.

Screenshots

MyZio4 screens
ECG+ | Your Watch ECG Reader4 screens

Verdict

The call

The clearest difference is in-app purchases: MyZio at none against ECG+ | Your Watch ECG Reader's 5. MyZio also leads on rating (4.8 vs 4.5) and ratings volume (69K vs 2.6K). ECG+ | Your Watch ECG Reader's advantage is update cadence (every 9 days vs every 6 months) and review sentiment (64% vs 53%). On price, ads, chart position 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. MyZio asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MyZio holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: MyZio has 69K ratings behind it against 2.6K, so its average is the more settled of the two. Written reviews complicate that: 53% of MyZio's written reviews are positive against 64% of ECG+ | Your Watch ECG Reader's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

MyZio ships an update every 6 months, ECG+ | Your Watch ECG Reader every 9 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 4 level
MyZio versus ECG+ | Your Watch ECG Reader: the parameters behind the verdict, then further details
ParameterMyZioECG+ | Your Watch ECG Reader
PriceFreeFree
Rating4.8 (69K ratings) — better4.5 (2.6K ratings)
Positive reviews53.3% of reviews64.2% of reviews — better
Number of ratings69K — better2.6K
Update frequencyEvery 6 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#34#29 — better
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS15.0 — better18.0
Further details — not scored
Size70 MB151 MB
Age rating17+17+
DeveloperiRhythm Technologies, IncHeartworks Pty Ltd

Customer experience

MyZio

All ratings68,357 ratings
Positive94.5%
Neutral3.2%
Negative2.3%
Written reviews426 reviews
Positive53.3%
Neutral13.6%
Negative33.1%

ECG+ | Your Watch ECG Reader

All ratings2,504 ratings
Positive86.9%
Neutral3.6%
Negative9.5%
Written reviews450 reviews
Positive64.2%
Neutral8.4%
Negative27.3%

User reviews

MyZio

From 69K App Store ratings

What we love

  • 🚀 Thoughtfully designed device
  • 👍 Easy to use app
  • 👍 Convenient and user-friendly
  • 👍 Straightforward instructions
  • 👍 Helpful app features

Room to improve

  • 🐛 Adhesive issues and device falling off
  • 🔒 Lack of clear device status indication
  • 🔒 Inability to edit logged entries
  • 🔒 Restrictive usage guidelines
  • 🔒 Unreliable data collection

ECG+ | Your Watch ECG Reader

From 2.6K App Store ratings

What we love

  • 🚀 Accurate ECG readings
  • 👍 Helpful in monitoring heart health
  • 📊 Provides useful insights and data
  • 🤖 Impressive algorithms and analysis

Room to improve

  • 🐛 Inconsistent performance and reliability
  • 💰 Expensive subscription model
  • 🤔 Limited functionality in free version
  • ⚠️ Compatibility issues with older devices

Bugs and requests

MyZio

Reported bugs

3 issues
  • App login and registration issues
  • Inconsistent app behavior and UI
  • Limitations in logging symptoms

Requested features

6 requests
  • More removable pads for extended wear
  • Option to log accidental button presses
  • Ability to edit logged entries
  • Real-time heart rate monitoring
  • Improved app design and functionality
Show 1 more
  • Better customer support options

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

In-app purchases

None

MyZio

No 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

Questions

Is MyZio free?
MyZio is free to download, with no in-app purchases.
Is ECG+ | Your Watch ECG Reader free?
ECG+ | Your Watch ECG Reader is free to download, with in-app purchases available.
Which has better reviews, MyZio or ECG+ | Your Watch ECG Reader?
MyZio is rated higher. MyZio averages 4.8 out of 5 from 69K ratings, while ECG+ | Your Watch ECG Reader averages 4.5 from 2.6K ratings.
Do MyZio or ECG+ | Your Watch ECG Reader have ads?
Neither MyZio nor ECG+ | Your Watch ECG Reader shows ads.
Which is updated more often, MyZio or ECG+ | Your Watch ECG Reader?
MyZio ships an update every 6 months, and ECG+ | Your Watch ECG Reader every 9 days. Most recently, MyZio was updated on November 1, 2026 and ECG+ | Your Watch ECG Reader on October 30, 2026.
Which is more popular, MyZio or ECG+ | Your Watch ECG Reader?
MyZio currently peaks at #34 in the App Store charts, and ECG+ | Your Watch ECG Reader at #29. Chart position reflects recent download velocity rather than total install base.

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