Best Arrhythmia Apps

249+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated August 2026

Out of 249+ arrhythmia apps on iOS, 18 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 Arrhythmia Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1arrhythmiaarrhythmiaFree4.2★ (111)NoYesAug 2026
2Cardiio: Heart Rate MonitorCardiio: Heart Rate MonitorFree4.7★ (58K)NoYesAug 2026
3KardiaKardiaFree4.8★ (226K)NoNoAug 2026
4HeartScan: Heart Rate MonitorHeartScan: Heart Rate MonitorFree3.6★ (50)YesYesJul 2026
5ECG+ | Your Watch ECG ReaderECG+ | Your Watch ECG ReaderFree4.5★ (2.4K)NoYesAug 2026
6ECG Basics Lite: ECG Made EasyECG Basics Lite: ECG Made EasyFree3.0★ (1)YesNoMay 2026
7Cardiac Arrhythmia Exam ReviewCardiac Arrhythmia Exam Review$3.99NoNoAug 2026
8Preventicus Heartbeats.Preventicus Heartbeats.Free4.0★ (92)NoYesJun 2026

Top Picks for Arrhythmia

arrhythmia#1

arrhythmia by Single Sail Software, LLC

Practice reading EKGs, lead II
Editor's Choice
🏥 Medical
4.2(111 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.

Cardiio: Heart Rate Monitor#2

Cardiio: Heart Rate Monitor by Cardiio, Inc.

HR checker & beat analyzer
Strong Contender
💪 Health & Fitness
4.7😊(58K ratings)
FreeIn-App Purchases
Cardiio: Heart Rate Monitor screenshot 1
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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

Room to Improve

  • 🐛 Inconsistent or unreliable readings
  • 🐛 Difficulty getting readings after exercise
  • 🐛 Compatibility issues with newer iPhone models
Kardia#3

Kardia by AliveCor, Inc.

Worth Considering
🏥 Medical
4.8😊(226K ratings)
Free
#61in Medical
Kardia screenshot 1
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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

Room to Improve

  • 🔒 Requires subscription to unlock advanced features
  • 🔋 Battery life issues
  • 🔌 Connectivity problems

More Arrhythmia apps to explore

4
HeartScan: Heart Rate Monitor
HeartScan: Heart Rate Monitor
HeartScan: Heart Rate Monitor
Instant Pulse & Rhythm Check
Free

This app uses your phone's sensors to visualize your heart's mechanical activity, offering insights into pulse, rhythm, and recovery. It provides detailed cardio-wave views and generates doctor-ready reports, all while keeping your data private on your device.

Instant pulse and rhythm checkCardio-wave viewerHeart rate variability (HRV) snapshot
💪 Health & Fitness
(50)
free with in-app purchases
5
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
6
ECG Basics Lite: ECG Made Easy
ECG Basics Lite: ECG Made Easy
ECG Basics Lite: ECG Made Easy
Best ECG/EKG app for beginners
Free

Learn electrocardiogram interpretation through pattern recognition with this app. It covers basic concepts like rate calculation and rhythm analysis, progressing to advanced topics such as rhythm disturbances and cardiac ischemia. It serves as a reference atlas for emergency situations.

Basic ECG conceptsAdvanced ECG topicsRate and rhythm analysis
🏥 Medical
(1)
ad-supported
7
Cardiac Arrhythmia Exam Review
Cardiac Arrhythmia Exam Review
Cardiac Arrhythmia Exam Review
Exam Prep Flashcards & Quizzes
$3.99
📚 Education
(0)
8
Preventicus Heartbeats.
Preventicus Heartbeats.
Preventicus Heartbeats.
ECG alike heart rhythm test
Free

Monitor your heart rhythm using your smartphone camera for quick and detailed analysis. Detect potential cardiac arrhythmias like atrial fibrillation with regular use. Receive expert review for abnormal results and personalized heart health articles.

Heart rhythm analysis via smartphone cameraOne-minute heart rhythm testDetection of cardiac arrhythmia
🏥 Medical
(92)
free with in-app purchases
9
epTools Lite
epTools Lite
epTools Lite
Resources for Cardiac EP
Free
🏥 Medical
(0)
10
ECG APPtitude
ECG APPtitude
ECG APPtitude
ECG reference guide
Free

This medical reference guide provides a comprehensive overview of ECG analysis and interpretation. It features high-quality ECGs from real patients, annotated with explanations of normal and abnormal findings. Content is organized by ECG features and diagnoses for easy learning and reference.

Comprehensive ECG reference guideHigh-quality patient ECGsAnnotated ECGs with text and illustrations
🏥 Medical
(7)
free
11
ReadMyRhythm
ReadMyRhythm
ReadMyRhythm
by READMYRHYTHM, LLC
Free
💪 Health & Fitness
(0)
12
BHRS Events
BHRS Events
BHRS Events
by BRITISH HEART RHYTHM SOCIETY (BHRS)
Free
🔍 Reference
(0)
13
Heart Rate Monitor - Pulse BPM
Heart Rate Monitor - Pulse BPM
Heart Rate Monitor - Pulse BPM
Pulse: Step,Health HR&Oximeter
Free

Easily monitor your heart rate, track steps, and record vital health metrics like blood pressure and body temperature. Save and visualize your health data, set reminders, and share your progress with friends and family. This app provides convenient health insights for daily well-being.

Measure heart rate anywhereTrack steps, blood pressure, and body temperatureSave and visualize health data
💪 Health & Fitness
(130K)
freemium
14
ECG EKG Interpretation Mastery
ECG EKG Interpretation Mastery
ECG EKG Interpretation Mastery
Read and Practice Cardiology
Free

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.

Master ECG interpretationComprehensive guides and tipsNo more big books
🏥 Medical
(712)
subscription
15
ECG Interpretation: Pkt Guide
ECG Interpretation: Pkt Guide
ECG Interpretation: Pkt Guide
Incredibly Easy Pocket Guide
Free

This pocket guide offers essential skills for ECG interpretation, rhythm strip analysis, and arrhythmia treatment. It features helpful charts, illustrations, and definitions for students and new nurses. Access content offline and use smart search for quick information retrieval.

ECG interpretation and rhythm strip analysisArrhythmia identification and treatmentHelpful charts, illustrations, and definitions
🏥 Medical
(2)
free with in-app purchases
16
Antiarrhythmics for Afib
Antiarrhythmics for Afib
Antiarrhythmics for Afib
by UMA MLG, LLC
Free
📚 Education
(0)
17
ECG Basics Pro - ECG Made Easy
ECG Basics Pro - ECG Made Easy
ECG Basics Pro - ECG Made Easy
Best app to learn ECG Beginner
$3.99
🏥 Medical
(0)
18
ECG - Corrected QT Interval
ECG - Corrected QT Interval
ECG - Corrected QT Interval
Electrocardiogram Rhythm App
Free
🏥 Medical
(0)
19
SVT-O-MATIC
SVT-O-MATIC
SVT-O-MATIC
EP educational tool
Free
🏥 Medical
(0)
20
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

FAQ about Arrhythmia

What are the best arrhythmia apps for iPhone?
arrhythmia tops our arrhythmia apps ranking as of August 2026, with a 4.2-star average from 111 App Store ratings, and it's free to download.
Yes — 18 of the top arrhythmia apps we rank are free to download, including arrhythmia and Cardiio: Heart Rate Monitor.
arrhythmia has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ arrhythmia apps on the iOS App Store as of August 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.

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