Best Heart Arrhythmia Apps

249+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated October 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 (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ECG Tracker+ EKG Reader HRVECG Tracker+ EKG Reader HRVFree3.7★ (30)NoYesOct 2026Sponsored
2ECG+ | Your Watch ECG ReaderECG+ | Your Watch ECG ReaderFree4.5★ (2.6K)NoYesOct 2026
3HeartLab: ECG & Heart AnalysisHeartLab: ECG & Heart AnalysisFree3.6★ (26)YesYesOct 2026
4KardiaKardiaFree4.8★ (238K)NoNoOct 2026
5ECG heart analyze - watchECG heart analyze - watchFree4.7★ (1.7K)NoYesOct 2026
6arrhythmiaarrhythmiaFree4.1★ (113)NoYesOct 2026
7AF MonitorAF MonitorFree—NoNoMay 2026
8HeartScan: Heart Rate MonitorHeartScan: Heart Rate MonitorFree3.6★ (52)YesYesOct 2026

Top Picks for Heart Arrhythmia

ECG Tracker+ EKG Reader HRV#1

ECG Tracker+ EKG Reader HRV by Artur Teodorowicz

Heart Rhythm & QTc Analysis
🏥 Medical
3.7(30 ratings)
Free
ECG Tracker+ EKG Reader HRV screenshot 1
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Analyze ECG recordings from compatible health apps on a calibrated grid. Measure key metrics like HRV and QTc, track trends over time, and export detailed PDF reports. All processing is done on-device for enhanced privacy.

ECG+ | Your Watch ECG Reader#2

ECG+ | Your Watch ECG Reader by Heartworks Pty Ltd

Evidence your doctor can use
Strong Contender
🏥 Medical
4.5😐(2.6K ratings)
FreeIn-App Purchases
#31in Medical
ECG+ | Your Watch ECG Reader screenshot 1
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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
3.6(26 ratings)
FreeAdsIn-App Purchases
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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.

4.8😊(238K ratings)
Free
#90in Medical
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Record medical-grade EKGs from home using a personal EKG device. Get instant analysis for common arrhythmias and easily share your heart data with your doctor for remote management of your heart health.

What We Love

  • 👍 Useful for monitoring heart health
  • 🚀 Accurate and reliable device
  • 📊 Helpful for providing evidence to doctors
  • 🤖 Convenient and easy to use
  • 💡 Allows remote monitoring of heart conditions

Room to Improve

  • 🔒 Requires subscription to unlock advanced features
  • 🔋 Battery life issues
  • 🔌 Connectivity problems
  • 🤔 Inconsistent or inaccurate readings
  • 💰 Expensive device and subscription

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 October 2026, with a 4.5-star average from 2.6K App Store ratings, and it's free to download.
Yes — 20 of the top heart arrhythmia apps we rank are free to download, including ECG+ | Your Watch ECG Reader and HeartLab: ECG & Heart Analysis.
ECG+ | Your Watch ECG Reader has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ heart arrhythmia apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.