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Best Heart Arrhythmia Apps

249+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated September 2026

ECG+ | Your Watch ECG Reader is the household name in heart arrhythmia, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Heart Arrhythmia Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ECG+ | Your Watch ECG ReaderECG+ | Your Watch ECG ReaderFree4.5★ (2.5K)NoYesSep 2026
2arrhythmiaarrhythmiaFree4.2★ (111)NoYesAug 2026
3HeartLab: ECG & Heart AnalysisHeartLab: ECG & Heart AnalysisFree3.7★ (19)NoYesSep 2026
4ECG ReportsECG ReportsFree—NoNoSep 2026
5ECG heart analyze - watchECG heart analyze - watchFree4.7★ (1.6K)NoYesSep 2026
6AF MonitorAF MonitorFree—NoNoMay 2026
7KardiaKardiaFree4.8★ (232K)NoNoSep 2026
8HeartScan: Heart Rate MonitorHeartScan: Heart Rate MonitorFree3.6★ (50)YesYesJul 2026

Top Picks for Heart Arrhythmia

ECG+ | Your Watch ECG Reader#1

ECG+ | Your Watch ECG Reader by Heartworks Pty Ltd

Evidence your doctor can use
Editor's Choice
🏥 Medical
4.5😐(2.5K ratings)
FreeIn-App Purchases
#31in Medical
ECG+ | Your Watch ECG Reader screenshot 1
ECG+ | Your Watch ECG Reader screenshot 2
ECG+ | Your Watch ECG Reader screenshot 3
ECG+ | Your Watch ECG Reader screenshot 4
ECG+ | Your Watch ECG Reader screenshot 5
ECG+ | Your Watch ECG Reader screenshot 6

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.

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
HeartLab: ECG & Heart Analysis#3

HeartLab: ECG & Heart Analysis by CEPALabs SH.P.K.

AFib PVC PAC Arrhythmia HRV AI
Worth Considering
🏥 Medical
3.7(19 ratings)
FreeIn-App Purchases
HeartLab: ECG & Heart Analysis screenshot 1
HeartLab: ECG & Heart Analysis screenshot 2
HeartLab: ECG & Heart Analysis screenshot 3
HeartLab: ECG & Heart Analysis screenshot 4
HeartLab: ECG & Heart Analysis screenshot 5
HeartLab: ECG & Heart Analysis screenshot 6

This app analyzes smartwatch ECG data, providing professional-grade insights into heart rhythm irregularities and heart rate variability. It uses AI to explain results in plain language and generates shareable PDF reports for cardiologists. Data is analyzed locally for complete privacy.

More Heart Arrhythmia apps to explore

FAQ about Heart Arrhythmia

What are the best heart arrhythmia apps for iPhone?
ECG+ | Your Watch ECG Reader tops our heart arrhythmia apps ranking as of September 2026, with a 4.5-star average from 2.5K App Store ratings, and it's free to download.
Yes — 19 of the top heart arrhythmia apps we rank are free to download, including ECG+ | Your Watch ECG Reader and arrhythmia.
ECG+ | Your Watch ECG Reader has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ heart arrhythmia apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
ECG+ helps you review your recorded ECGs on your Apple Watch and monitor your Heart Rate Variability (HRV). It calculates PQRST to reveal your unique heartbeat signature and tracks HRV changes, which is recognized as a measure of physical readiness. The app integrates with Apple Health.
No, ECG+ is not a diagnostic tool and does not provide medical services or advice. The app and its algorithms are for general informational and educational purposes only and are not a substitute for professional medical care, diagnosis, or treatment.