Best Heart Arrhythmia Apps

250+ iOS apps curated and reviewed

4.0 avg rating
19 free apps
Updated October 2026

HeartLab is the household name in heart arrhythmia, but it's far from the only option. We track 250+ 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 HRVFree3.5★ (24)NoYesOct 2026Sponsored
2HeartLab: ECG & Heart AnalysisHeartLab: ECG & Heart AnalysisFree3.8★ (20)YesYesOct 2026
3ECG+ | Your Watch ECG ReaderECG+ | Your Watch ECG ReaderFree4.5★ (2.5K)NoYesOct 2026
4arrhythmiaarrhythmiaFree4.2★ (111)NoYesOct 2026
5KardiaKardiaFree4.8★ (232K)NoNoOct 2026
6ECG heart analyze - watchECG heart analyze - watchFree4.7★ (1.6K)NoYesOct 2026
7AF MonitorAF MonitorFree—NoNoMay 2026
8HeartScan: Heart Rate MonitorHeartScan: Heart Rate MonitorFree3.6★ (50)YesYesJul 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
3.5(24 ratings)
Free
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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.

HeartLab: ECG & Heart Analysis#2

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

AFib PVC PAC Arrhythmia HRV AI
Strong Contender
🏥 Medical
3.8(20 ratings)
FreeAdsIn-App Purchases
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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.

ECG+ | Your Watch ECG Reader#3

ECG+ | Your Watch ECG Reader by Heartworks Pty Ltd

Evidence your doctor can use
Worth Considering
🏥 Medical
4.5😐(2.5K ratings)
FreeIn-App Purchases
#30in 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

More Heart Arrhythmia apps to explore

FAQ about Heart Arrhythmia

What are the best heart arrhythmia apps for iPhone?
HeartLab: ECG & Heart Analysis tops our heart arrhythmia apps ranking as of October 2026, with a 3.8-star average from 20 App Store ratings, and it's free to download.
Yes — 19 of the top heart arrhythmia apps we rank are free to download, including HeartLab: ECG & Heart Analysis and ECG+ | Your Watch ECG Reader.
HeartLab: ECG & Heart Analysis shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 250+ heart arrhythmia apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.