Best Cardiac Rhythm Apps

248+ iOS apps curated and reviewed

4.4 avg rating
17 free apps
Updated September 2026

Out of 248+ cardiac rhythm apps on iOS, 17 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Cardiac Rhythm Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Cardiio: Heart Rate MonitorCardiio: Heart Rate MonitorFree4.7★ (58K)NoYesSep 2026
2EKGSmart: Rhythm IdentifierEKGSmart: Rhythm IdentifierFreeNoNoSep 2026
3ECG EKG Interpretation MasteryECG EKG Interpretation MasteryFree4.5★ (712)NoYesSep 2026
4KardiaKardiaFree4.8★ (231K)NoNoSep 2026
5ECG / EKG Explained ClearlyECG / EKG Explained ClearlyFree4.7★ (6)NoYesMay 2026
6ECG Pro | Road to MasteryECG Pro | Road to MasteryFree4.5★ (3.6K)NoYesSep 2026
7오란다 볼링파크오란다 볼링파크FreeNoNoJun 2026
8arrhythmiaarrhythmiaFree4.2★ (111)NoYesAug 2026

Top Picks for Cardiac Rhythm

Cardiio: Heart Rate Monitor#1

Cardiio: Heart Rate Monitor by Cardiio, Inc.

HR checker & beat analyzer
Editor's Choice
💪 Health & Fitness
4.7😊(58K ratings)
FreeIn-App Purchases
Cardiio: Heart Rate Monitor screenshot 1
Cardiio: Heart Rate Monitor screenshot 2
Cardiio: Heart Rate Monitor screenshot 3
Cardiio: Heart Rate Monitor screenshot 4
Cardiio: Heart Rate Monitor screenshot 5
Cardiio: Heart Rate Monitor screenshot 6

Easily track your heart rate, blood oxygen, and fitness using your phone's camera. Get instant readings, analyze trends, and access quick workouts to improve your cardiovascular health. Unlock advanced features for deeper insights and personalized health comparisons.

What We Love

  • 👍 Accurate heart rate monitoring
  • 👍 Convenient and easy to use
  • 👍 Helpful for monitoring heart health conditions
  • 👍 Useful workout features
  • 👍 Integrates well with Apple Health

Room to Improve

  • 🐛 Inconsistent or unreliable readings
  • 🐛 Difficulty getting readings after exercise
  • 🐛 Compatibility issues with newer iPhone models
  • 💰 Paid features not worth the cost
  • 🔒 Privacy concerns with data sharing
ECG EKG Interpretation Mastery#3

ECG EKG Interpretation Mastery by Higher Learning Technologies

Read and Practice Cardiology
Worth Considering
🏥 Medical
4.5😞(712 ratings)
FreeIn-App Purchases
ECG EKG Interpretation Mastery screenshot 1
ECG EKG Interpretation Mastery screenshot 2
ECG EKG Interpretation Mastery screenshot 3
ECG EKG Interpretation Mastery screenshot 4
ECG EKG Interpretation Mastery screenshot 5
ECG EKG Interpretation Mastery screenshot 6

Learn to interpret ECGs with this comprehensive app. It offers study materials, practice ECG strips, and essential clinical facts to help you understand abnormal EKGs and master 12-lead interpretations.

What We Love

  • 📚 Simple, easy-to-understand format
  • 🎨 Nice graphics and visual presentation
  • 📖 Good reference material for EKG basics
  • ✅ Comprehensive coverage from basics to advanced levels

Room to Improve

  • 💰 Expensive subscription model ($9.99-$20/month)
  • 🔒 Invasive privacy policy collecting personal data
  • ⚠️ Automatic charging after free trial without clear warning
  • 📝 Limited content - only ~20 note cards
  • ❌ Lacks depth and in-depth explanations
  • 🚫 Paywall blocks access to most features
  • 🎯 Poor quiz/practice question functionality
  • 😕 Not user-friendly interface
  • 🔄 Requires constant monthly payments vs. one-time purchase
  • 📱 Compatibility issues with newer devices (iPhone X)

More Cardiac Rhythm apps to explore

FAQ about Cardiac Rhythm

What are the best cardiac rhythm apps for iPhone?
Cardiio: Heart Rate Monitor tops our cardiac rhythm apps ranking as of September 2026, with a 4.7-star average from 58K App Store ratings, and it's free to download.
Yes — 17 of the top cardiac rhythm apps we rank are free to download, including Cardiio: Heart Rate Monitor and EKGSmart: Rhythm Identifier.
Cardiio: Heart Rate Monitor has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 248+ cardiac rhythm apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Cardiio transforms your iPhone into a health tool to track your heart rate, blood oxygen, and fitness. It provides instant readings, analyzes trends over time, and offers quick workouts to improve heart health. The app is designed for informational purposes and not for medical use.
To measure your heart rate, simply place your finger on your iPhone's camera. The app will then provide an accurate reading in seconds. This feature allows for effortless and instant heart rate monitoring.

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