Best Cardiac Rhythm App

212+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated June 2026

Whether you're new to cardiac rhythm app or looking for an upgrade, our curated collection of 212+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Cardiac Rhythm App (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1arrhythmiaarrhythmiaFree4.2★ (87)NoYesJul 2026
2ECG EKG Interpretation MasteryECG EKG Interpretation MasteryFree4.5★ (671)YesYesJul 2026
3ECG Pro | Road to MasteryECG Pro | Road to MasteryFree4.5★ (3.6K)NoYesJul 2026
4Cardiio: Heart Rate MonitorCardiio: Heart Rate MonitorFree4.7★ (58K)NoYesJul 2026
5AHA ACLS Mastery | Exam PrepAHA ACLS Mastery | Exam PrepFree4.7★ (1.7K)NoYesJul 2026
6ECG / EKG Explained ClearlyECG / EKG Explained ClearlyFree4.7★ (6)NoYesMay 2026
7Instant Heart Rate: HR MonitorInstant Heart Rate: HR MonitorFree4.9★ (229K)YesYesJul 2026
8KardiaKardiaFree4.8★ (222K)NoNoJul 2026

Top Picks for Cardiac Rhythm App

arrhythmia#1

arrhythmia by Single Sail Software, LLC

Practice reading EKGs, lead II
Editor's Choice
🏥 Medical
4.2(87 ratings)
FreeIn-App Purchases
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Practice interpreting EKGs in lead II with realistic simulations. Choose rhythms to study or test your knowledge in a game mode. Ideal for healthcare professionals to hone their diagnostic skills.

ECG EKG Interpretation Mastery#2

ECG EKG Interpretation Mastery by Higher Learning Technologies

Read and Practice Cardiology
Strong Contender
🏥 Medical
4.5😞(671 ratings)
FreeAdsIn-App Purchases
ECG EKG Interpretation Mastery screenshot 1
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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
ECG Pro | Road to Mastery#3

ECG Pro | Road to Mastery by WMS, Inc

ECG Made Easy
Worth Considering
🏥 Medical
4.5😊(3.6K ratings)
FreeIn-App Purchases
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This app provides a vast library of interpreted ECG cases to help medical professionals and students enhance their electrocardiogram reading skills. It offers interactive learning modes and detailed case analyses, reducing the need for multiple reference sources.

What We Love

  • 👍 Very nice app
  • 👍 Enjoyable and informative
  • 👍 Great learning tool
  • 👍 Excellent app for learning ECG

Room to Improve

  • 💰 Premium needed for most features
  • 🐛 Incorrect ECG interpretations
  • 🐛 Lack of explanations for quiz answers

More Cardiac Rhythm App apps to explore

4
Cardiio: Heart Rate Monitor
Cardiio: Heart Rate Monitor
Cardiio: Heart Rate Monitor
HR checker & beat analyzer
Free

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.

Instant heart rate monitoringBlood oxygen and fitness trackingQuick 7-minute workouts
💪 Health & Fitness
(58K)
free with in-app purchases
5
AHA ACLS Mastery | Exam Prep
AHA ACLS Mastery | Exam Prep
AHA ACLS Mastery | Exam Prep
ACLS Test Practice & Quiz 2026
Free

Prepare for your ACLS certification exam with over 550 practice questions, reference materials, and megacode scenarios. Master essential resuscitation skills and gain confidence for test day. Study anytime, anywhere with adaptive quizzes and in-depth statistics.

550+ adaptive practice questionsACLS reference materialsMust-know ACLS terminology
📚 Education
(1.7K)
free with in-app purchases
6
ECG / EKG Explained Clearly
ECG / EKG Explained Clearly
ECG / EKG Explained Clearly
Top-rated ECG Course with CME
Free

Learn a systematic approach to interpreting ECGs with concise videos, quizzes, and practice examples. This course is designed for healthcare professionals and students seeking to master cardiac physiology and EKG analysis.

Systematic EKG interpretation approachUnderstanding of heart's electrical activityIllustrations of abnormal EKG findings
🏥 Medical
(6)
free
7
Instant Heart Rate: HR Monitor
Instant Heart Rate: HR Monitor
Instant Heart Rate: HR Monitor
Pulse Tracker & Stress Test
Free

Measure your heart rate and stress levels accurately using your phone's camera. Track trends, view pulse waveforms, and utilize a StandUp test for fitness insights. Integrates with Apple Health.

Heart rate measurementStress level checkPulse waveform graphs
💪 Health & Fitness
(229K)
free with in-app purchases
8
Kardia
Kardia
Kardia
by AliveCor, Inc.
Free

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.

Record medical-grade EKGsInstant arrhythmia analysisShare heart data with doctors
🏥 Medical
(222K)
free
9
Cardiograph Heart Rate Monitor
Cardiograph Heart Rate Monitor
Cardiograph Heart Rate Monitor
Instant Heartbeat Measuring
Free

Measure your heart rate instantly using your smartphone's camera and LED flashlight. Track your pulse history with clear graphs and intuitive guidance for accurate readings. Useful for exercise, stress, or general health curiosity.

Instant heart rate measurementUses smartphone camera and flashlightSaves measurement history
🏥 Medical
(732)
free with in-app purchases
10
Heartify: Heart Health Monitor
Heartify: Heart Health Monitor
Heartify: Heart Health Monitor
Pulse & Stress Analyzer, HRV
Free

Monitor your heart rate and track key health metrics like HRV, stress, and energy levels using your phone's camera. Gain insights into your heart health with educational content and progress reports. Connect with a community and access premium features through subscription.

Measure heart rate with phone cameraTrack Heart Rate Variability (HRV)Monitor Stress and Energy levels
💪 Health & Fitness
(118K)
free with in-app purchases
11
Instant ECG - Mastery of EKG
Instant ECG - Mastery of EKG
Instant ECG - Mastery of EKG
Electrocardiogram Rhythm Guide
$5.99

This app serves as a comprehensive guide and quick reference for electrocardiograms (ECGs/EKGs). It covers a wide range of rhythms, blocks, and myocardial infarctions, and includes interactive quizzes to test knowledge.

Extensive ECG rhythm libraryDetailed interpretation of blocks and MIsLearning modules on ECG basics
🏥 Medical
(501)
free with in-app purchases
12
ECG+ | Your Watch ECG Reader
ECG+ | Your Watch ECG Reader
ECG+ | Your Watch ECG Reader
Evidence your doctor can use
Free

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.

ECG recording analysisHeart Rate Variability (HRV) trackingPQRST calculation
🏥 Medical
(2.3K)
free with in-app purchases
13
ECG Books
ECG Books
ECG Books
Cardiology References
Free

Access a vast library of real-world ECG recordings demonstrating various cardiac abnormalities. Learn to interpret ECG findings with concise explanations and detailed case studies. Practice with over 1000 abnormal ECG cases in movie or report modes.

View real-time ECG recordingsConcise explanations of abnormalities1000+ abnormal ECG cases
🏥 Medical
(414)
free with in-app purchases
14
Cardiograph
Cardiograph
Cardiograph
Measure your heart rate
$1.99

Measure your heart rate using your device's camera. Track your cardiovascular health with detailed history, tagging, sharing, and printing options. Get accurate results quickly with a simple, intuitive design.

Measure heart rate with cameraDetailed history recordsSync, tag, and share measurements
💪 Health & Fitness
(2.3K)
free with in-app purchases
15
Wellthly-Feel Heart Rhythm
Wellthly-Feel Heart Rhythm
Wellthly-Feel Heart Rhythm
Care about your health
Free

Monitor your heart health in real-time with personalized insights and nutrition recommendations. Track progress, analyze metrics, and generate health reports to share with your doctor. This app helps you achieve your heart health goals.

Real-time heart rate monitoringHeart age and HRV trackingPersonalized health insights
💪 Health & Fitness
(2.4K)
free with in-app purchases
16
InPulse - Heart Rate Monitor
InPulse - Heart Rate Monitor
InPulse - Heart Rate Monitor
Log Blood Pressure & Oxygen
Free

Monitor your heart rate using your iPhone's camera and log blood pressure and oxygen saturation. Receive daily wellness assessments, habit tracking, and emotional wellbeing tools. This app is for fitness and general wellness information.

Measure heart rate with cameraLog blood pressure and oxygenDaily wellness assessments
💪 Health & Fitness
(166K)
freemium
17
Rhythm SYNC.
Rhythm SYNC.
Rhythm SYNC.
by Scosche
Free

This app connects to heart rate monitors to display real-time data, manage activity modes, and track workout history. It allows for software updates and integrates with HealthKit for saving workout data.

Connects to Rhythm 24 and Rhythm+ monitorsManages activity modes and biometricsDisplays heart rate and battery level
💪 Health & Fitness
(128)
free
18
ECG heart analyze - watch
ECG heart analyze - watch
ECG heart analyze - watch
EKG, HRV, Stress monitor
Free

This app analyzes heart rhythm data from your Apple Watch to provide insights into atrial fibrillation, HRV, stress, and energy levels. It offers a holistic health snapshot and personalized recommendations for better well-being.

Atrial Fibrillation vs. Sinus Rhythm analysisHRV analysis for cardiovascular healthStress and energy level insights
💪 Health & Fitness
(1.5K)
free with in-app purchases
19
Qaly | ECG Reader
Qaly | ECG Reader
Qaly | ECG Reader
Your ECGs, Read by Experts
Free

Get your ECGs analyzed by certified experts within minutes for peace of mind. This app supports various devices like Apple Watch and Fitbit, offering detailed interpretations of palpitations and abnormal heart rhythms. Track heart rate variability to monitor stress and recovery.

Expert ECG interpretationSupports Apple Watch, Fitbit, Kardia, and moreAnalysis of 30+ heart rhythms
💪 Health & Fitness
(840)
free
20
Eko: Digital Stethoscope + ECG
Eko: Digital Stethoscope + ECG
Eko: Digital Stethoscope + ECG
Record Heart Sounds & Rhythms
Free

This app enhances physical exams by recording and analyzing heart and lung sounds. It helps detect potential heart and lung conditions, allowing for secure storage and sharing of recordings and reports. Features like murmur and AFib flagging are available with compatible devices and memberships.

Record heart and lung sounds wirelesslyFlag murmurs, AFib, tachycardia, bradycardiaSave, play back, and annotate recordings
🏥 Medical
(9.9K)
free with in-app purchases

FAQ about Cardiac Rhythm App

What is the best cardiac rhythm app for iPhone?
arrhythmia tops our cardiac rhythm app ranking as of June 2026, with a 4.2-star average from 87 App Store ratings, and it's free to download.
Yes — 18 of the top cardiac rhythm app we rank are free to download, including arrhythmia and ECG EKG Interpretation Mastery.
arrhythmia has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 212+ cardiac rhythm app on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides a platform to practice reading and interpreting EKGs specifically in lead II. It offers realistic simulations of various cardiac rhythms, allowing users to hone their diagnostic skills through study and game modes.
Key features include a Study Mode where you can select and compare specific rhythms with brief descriptions, and a Game Mode to challenge your identification skills with randomly presented rhythms. Rhythms can be customized, and their rates, amplitudes, and widths are dynamically set for realism.