Comparison

Heart Analyzer vs ECG

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

Head to head
About

Heart Analyzer

Gain deep insights into your heart health using data from your Apple Watch. Visualize trends, analyze metrics like Cardio Recovery and Heart Rate Zones, and generate detailed PDF reports. Offers advanced features and privacy-focused data handling.

Highlights
  • Dashboard with daily summaries
  • Visualized heart rate and health data charts
  • Health vital trend assessment
  • Cardio Recovery and Heart Rate Zone analysis
  • Exportable PDF heart reports
  • ECG data comparison
  • HRV rMSSD and heart rate calibration
Features
Read full description

Heart Analyzer helps you track Heart Rate, HRV, Resting Heart Rate, Cardio Recovery, Sleep and ECG trends using Apple Watch. Analyze your Health data with advanced charts, insights, Heart Reports, widgets and detailed heart analytics powered by Apple Health. Set your own high and low heart rate alerts, take control of your HRV data in the new HRV Center, and see your sleep in detail with multiple sessions, naps and time out of bed. ------------------------------------------------ ■ Simple PRIVACY ------------------------------------------------ ◎ No third party analytics ◎ No data ever leaves your device ◎ No modifications to your health data ------------------------------------------------ ■ FEATURES ------------------------------------------------ ◎ The Dashboard - Where you can swipe between days, scroll through summaries and tap into the details ◎ Charts - Heart Rate and other Health data visualized through metrics and trends of any given day ◎ Insights - Effortlessly assess your Health Vital trends ◎ Heart Rate Alerts - Choose your own high and low heart rate limits, set mute times, and opt to be notified only on sustained changes ◎ HRV Center - Control the quality and context of the Heart Rate Variability data behind your trends ◎ Sleep - Multiple sleep sessions, naps and time out of bed, with your heart rate through the night ◎ Analytics Plus - Gain a unique understanding of important metrics such as Cardio Recovery, Heart Rate Zones and plenty more ◎ Heart Reports - Generate and export tailored PDFs including a large selection of metrics with custom timescales and password protection support ◎ Bookmarks - Highlight specific days of interest, make notes on relevant details ◎ Widgets - Interact with your Home Screen and track your Heart Rate, Resting Heart Rate trends and more at a glance ◎ ECGs - Compare and analyze data recorded by Apple Watch ◎ Advanced features - Including HRV rMSSD, Heart Rate Calibration, Custom Heart Rate Zones, Smart Heart Rate Recovery and more ------------------------------------------------ ■ APPLE WATCH ------------------------------------------------ ◎ A re-designed app showing your Heart Rate over the day ◎ Heart Rate Alerts on your wrist, with no complication needed on your watch face ◎ Charts with you on the go for Move, Exercise, Cardio Points, HRV, Blood Oxygen Saturation and Resting Heart Rate ◎ Workouts right on your wrist, tap into the detail as soon as you finish your exercise ◎ Customizable complications to keep you up to date with your Heart Rate and also support for Blood Oxygen Saturation, Heart Rate Variability and Resting Heart Rate trends HEALTH SUPPORT INCLUDES: - Heart Rate - Resting Heart Rate - Blood Pressure (Systolic & Diastolic) - Electrocardiogram (ECG/EKG) - Blood Oxygen Saturation (SPO2) - Cardio Fitness (VO2Max) - Heart Rate Variability (SDNN & rMSSD) - Respiratory Rate - Breathing Disturbances - Workouts - Sleep Times, Sessions & Naps - Heart Rate Recovery - Apple Fitness & Activity - High & Low Heart Rate Notifications Heart Analyzer Premium is available as an optional monthly or annual subscription. You can also choose a one-time Lifetime Access purchase. Payment will be charged to your Apple ID account. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription at any time in your App Store account settings. Additional Terms of Use: https://www.helixapps.co.uk/heart-analyzer-terms-of-use Please Note: - Heart Analyzer integrates with the Apple Health App to read your Heart Rate and other Health data - Heart Analyzer is available on iPad with iCloud sync for Apple Health data enabled. However, you still need an iPhone with a paired Apple Watch to generate Health data to display in Heart Analyzer - To get the most out of Heart Analyzer, an iPhone with a paired Apple Watch is required

About

ECG

This app allows users to take an electrocardiogram (ECG) using an Apple Watch Series 4 or later. It checks for signs of atrial fibrillation (AFib) or sinus rhythm and saves results to the Health app for sharing with a doctor.

Highlights
  • Take single-lead ECG readings
  • Detect signs of atrial fibrillation (AFib)
  • Check for normal sinus rhythm
  • Record symptoms alongside ECG
  • Export ECG data as PDF
  • Share results with healthcare providers
Read full description

ECG With the ECG app on Apple Watch Series 4 or later*, you can take an ECG similar to a single-lead electrocardiogram. The ECG app can record your heartbeat and rhythm using the electrical heart sensor on Apple Watch and then check for signs of atrial fibrillation (AFib), a form of irregular rhythm. Features • Allows you to take an ECG similar to a single-lead electrocardiogram. • Take an ECG at any time, when you’re feeling symptoms such as a rapid or skipped heartbeat, or when you receive an irregular rhythm notification. • The ECG app can indicate whether your heart rhythm shows signs of atrial fibrillation—a serious form of irregular heart rhythm—or sinus rhythm, which means your heart is beating in a normal pattern. • Saves ECG waveform, classification and any noted symptoms in a PDF on the Health app on iPhone to share with your doctor. *Not available in all regions. ECG app is not supported by Apple Watch SE.

Screenshots

Heart Analyzer4 screens

Verdict

The call

The clearest difference is review sentiment: Heart Analyzer at 84% against ECG's 11%. Heart Analyzer also leads on rating (4.7 vs 2.6) and update cadence (weekly vs every 11 months). ECG's advantage is in-app purchases (none vs 7) and iOS requirement (14.0 vs 17.5). On price, 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. Heart Analyzer sells 7 in-app purchases, starting at $3.99 per month. ECG asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Heart Analyzer holds the better App Store score, 4.7 against 2.6. That said, the two scores are not equally well evidenced: Heart Analyzer has 22K ratings behind it against 51, so its average is the more settled of the two. Written reviews point the same way: 84% of Heart Analyzer's written reviews are positive against 11% of ECG's.

UpkeepUpdate frequency

Heart Analyzer ships an update weekly, ECG every 11 months. The most recent releases landed on October 17, 2026 and September 17, 2026 respectively.

Scorecard7 real differences · 3 level
Heart Analyzer versus ECG: the parameters behind the verdict, then further details
ParameterHeart AnalyzerECG
PriceFreeFree
Rating4.7 (22K ratings) — better2.6 (51 ratings)
Positive reviews84.2% of reviews — better11.1% of reviews
Number of ratings22K — better51
Update frequencyWeekly — betterEvery 11 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPod, Apple Watch
Requires iOS17.514.0 — better
Further details — not scored
Size54 MB3 MB
Age rating4+17+
DeveloperHelix Apps LTDApple Inc.

Customer experience

Heart Analyzer

All ratings22,267 ratings
Positive92.6%
Neutral3.6%
Negative3.7%
Written reviews1,847 reviews
Positive84.2%
Neutral6.3%
Negative9.5%

ECG

All ratings51 ratings
Positive35.3%
Neutral9.8%
Negative54.9%
Written reviews18 reviews
Positive11.1%
Neutral5.6%
Negative83.3%

Bugs and requests

Heart Analyzer

Reported bugs

3 issues
  • Premium features not working as expected
  • Syncing issues between iPhone and Apple Watch
  • Oxygen level tracking not functioning properly

Requested features

4 requests
  • Add blood pressure monitoring
  • Allow generating reports for current month
  • Improve ECG interpretation guidance
  • Add option to customize Apple Watch complications

ECG

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Heart Analyzer

Subscriptions2
  • Monthly$3.991 Month
  • Annual$19.991 Year
One-time5
  • Data Plus$9.99
  • Reports Plus$9.99
  • Analytics Plus$9.99
Show 2 more
  • Complete Premium$24.99
  • Lifetime Access$49.99
None

ECG

No in-app purchases

Questions

Is Heart Analyzer free?
Heart Analyzer is free to download, with in-app purchases available.
Is ECG free?
ECG is free to download, with no in-app purchases.
Which has better reviews, Heart Analyzer or ECG?
Heart Analyzer is rated higher. Heart Analyzer averages 4.7 out of 5 from 22K ratings, while ECG averages 2.6 from 51 ratings.
Do Heart Analyzer or ECG have ads?
Neither Heart Analyzer nor ECG shows ads.
Which is updated more often, Heart Analyzer or ECG?
Heart Analyzer ships an update weekly, and ECG every 11 months. Most recently, Heart Analyzer was updated on October 17, 2026 and ECG on September 17, 2026.

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