Best Cardiac Arrhythmia Challenge Apps

197+ iOS apps curated and reviewed

4.4 avg rating
16 free apps
Updated July 2026

arrhythmia is the household name in cardiac arrhythmia challenge, but it's far from the only option. We track 197+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Cardiac Arrhythmia Challenge Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1arrhythmiaarrhythmiaFree4.2★ (87)NoYesJul 2026
2ECG EKG Interpretation MasteryECG EKG Interpretation MasteryFree4.5★ (671)YesYesJul 2026
3AHA ACLS Mastery | Exam PrepAHA ACLS Mastery | Exam PrepFree4.7★ (1.7K)NoYesJul 2026
4ECG Pro | Road to MasteryECG Pro | Road to MasteryFree4.5★ (3.6K)NoYesJul 2026
5Cardiio: Heart Rate MonitorCardiio: Heart Rate MonitorFree4.7★ (58K)NoYesJul 2026
6ECG Test for DoctorsECG Test for DoctorsFree4.7★ (392)NoYesJul 2026
7KardiaKardiaFree4.8★ (222K)NoNoJul 2026
8ECG+ | Your Watch ECG ReaderECG+ | Your Watch ECG ReaderFree4.5★ (2.4K)NoYesJul 2026

Top Picks for Cardiac Arrhythmia Challenge

arrhythmia#1

arrhythmia by Single Sail Software, LLC

Practice reading EKGs, lead II
Editor's Choice
🏥 Medical
4.2(87 ratings)
FreeIn-App Purchases
arrhythmia screenshot 1
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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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ECG EKG Interpretation Mastery screenshot 5
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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
AHA ACLS Mastery | Exam Prep#3

AHA ACLS Mastery | Exam Prep by Higher Learning Technologies

ACLS Test Practice & Quiz 2026
Worth Considering
📚 Education
4.7😊(1.7K ratings)
FreeIn-App Purchases
AHA ACLS Mastery | Exam Prep screenshot 1
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AHA ACLS Mastery | Exam Prep screenshot 6

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.

What We Love

  • 👍 Helpful for studying and staying up-to-date
  • 🚀 Effective for repetitive, concise summaries
  • 💡 Great for exam revision and critical thinking
  • 🚀 Excellent overall for learning and mastering ACLS

Room to Improve

  • 🐛 Compatibility issues on iPhone
  • 🔒 Difficult to cancel subscription
  • 💰 High subscription cost

More Cardiac Arrhythmia Challenge apps to explore

4
ECG Pro | Road to Mastery
ECG Pro | Road to Mastery
ECG Pro | Road to Mastery
ECG Made Easy
Free

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.

Thousands of interpreted ECG casesInteractive learning modesDetailed case interpretations
🏥 Medical
(3.6K)
free with in-app purchases
5
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
6
ECG Test for Doctors
ECG Test for Doctors
ECG Test for Doctors
Improve ECG Interpreting Skill
Free

Enhance your ECG interpretation skills with a vast library of real patient cases. This app offers detailed ECG recordings and interactive tests to challenge and improve your diagnostic abilities. Ideal for medical professionals and students seeking to build a strong cardiology foundation.

1000+ real patient ECG samplesStatic images and real-time monitorInteractive interpretation tests
🏥 Medical
(392)
free with in-app purchases
7
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
8
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
(2.4K)
free with in-app purchases
9
epTools
epTools
epTools
Resources for Cardiac EP
$19.99

This app provides a suite of tools for diagnosing and managing cardiac rhythm disorders. It offers algorithms for localizing arrhythmias, differentiating conditions like WPW from FVF, and assessing disease risks. Users can visualize progress, save analysis paths, and access cited scientific references.

Arrhythmia localization algorithmsDifferentiate WPW from FVFAtrial tachycardia localization
🏥 Medical
(495)
free
10
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
11
epTools Lite
epTools Lite
epTools Lite
Resources for Cardiac EP
Free
🏥 Medical
(0)
12
Cardiac Arrhythmia Exam Review
Cardiac Arrhythmia Exam Review
Cardiac Arrhythmia Exam Review
Exam Prep Flashcards & Quizzes
$3.99
📚 Education
(0)
13
ECG FlashCards
ECG FlashCards
ECG FlashCards
Rapid review of arrhythmia ECG
Free

This app provides quick reference ECGs of cardiac arrhythmias for medical professionals. It's designed for emergency situations or exam preparation, focusing on rhythm strips to avoid confusion. Users should have basic ECG knowledge.

ECG reference for cardiac arrhythmiasFocus on rhythm strips (lead II)Covers conduction abnormalities
🏥 Medical
(4)
free
14
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
(11K)
free with in-app purchases
15
12 Lead ECG Challenge
12 Lead ECG Challenge
12 Lead ECG Challenge
by Limmer Creative
$5.99

Master 12-lead ECG interpretation with real patient cases and expert explanations. This app helps EMS providers, nurses, and physicians build accuracy and confidence in identifying critical cardiac conditions through interactive learning and customized practice.

Real patient 12-lead ECG casesWide range of cardiac pathologiesInteractive ECG examination
🏥 Medical
(4)
paid
16
Heart Rate Monitor - Pulse HR
Heart Rate Monitor - Pulse HR
Heart Rate Monitor - Pulse HR
Heart Beat & Pulse Tracker App
Free

Track your heart rate using your phone's camera. Get readings in seconds, view historical data, and access guided meditations and health articles. Integrates with Apple Health and offers a home screen widget for convenience.

Heart rate measurement in under 10 secondsPersonal dashboard with historyAdd tags and comments to measurements
💪 Health & Fitness
(9K)
free with in-app purchases
17
AHA ACLS
AHA ACLS
AHA ACLS
ACLS Code Runner & Protocols
Free

This app provides clinicians with a digital tool to assist in running cardiac arrest codes and delivering advanced cardiac life support (ACLS) at the bedside. It features the latest AHA recommendations and includes intuitive access to algorithms, drug dosing, and timers for efficient patient care.

4 ACLS algorithms (cardiac arrest, tachycardia, bradycardia, post-arrest)Latest 2025 AHA ACLS contentDrug therapy and dosing
🏥 Medical
(109)
subscription
18
Heart Health Monitor & Tracker
Heart Health Monitor & Tracker
Heart Health Monitor & Tracker
Heart Rate & Blood Pressure
Free

Monitor your heart rate and analyze your pulse with real-time tracking and daily reports. Receive alerts for irregular heart rhythms and gain personalized insights into your cardiovascular health. Integrates with Apple Health for a comprehensive wellness profile.

Real-Time Heart Rate MonitoringDaily Heart Health ReportsArrhythmia & Irregular Rhythm Alerts
💪 Health & Fitness
(1.3K)
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
(846)
free
20
Heart Rate Monitor - HeartIn
Heart Rate Monitor - HeartIn
Heart Rate Monitor - HeartIn
Blood Pressure & Pulse Tracker
Free

This app uses your smartphone camera to monitor heart rate and variability, providing a heart score and stress/energy insights. It also allows logging of blood pressure and oxygen levels, and offers an AI chatbot for health queries.

Heart rate and variability measurementPersonalized heart score based on HRVHRV and pulse rate tracking
💪 Health & Fitness
(7.9K)
free with in-app purchases

FAQ about Cardiac Arrhythmia Challenge

What are the best cardiac arrhythmia challenge apps for iPhone?
arrhythmia tops our cardiac arrhythmia challenge apps ranking as of July 2026, with a 4.2-star average from 87 App Store ratings, and it's free to download.
Yes — 16 of the top cardiac arrhythmia challenge apps 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 July 2026.
We track 197+ cardiac arrhythmia challenge apps on the iOS App Store as of July 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.