Best Heart Arrhythmia Apps

222+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated May 2026

HeartLab is the household name in heart arrhythmia, but it's far from the only option. We track 222+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Heart Arrhythmia

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
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

Cardiio is a convenient heart rate monitoring application that allows users to easily check their heart rate using just their phone's camera. Stay informed about your heart health with this user-friendly and efficient app.

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
Heart Rate Monitor - Pulse BPM#3

Heart Rate Monitor - Pulse BPM by Hong Kong Zane Ai Limited

Pulse: Step,Health HR&Oximeter
Worth Considering
💪 Health & Fitness
4.6😐(128K ratings)
FreeAdsIn-App Purchases
Heart Rate Monitor - Pulse BPM screenshot 1
Heart Rate Monitor - Pulse BPM screenshot 2
Heart Rate Monitor - Pulse BPM screenshot 3
Heart Rate Monitor - Pulse BPM screenshot 4

Track your heart rate with ease using Pulse BPM. Monitor your pulse in real-time, keep track of your health, and stay on top of your fitness goals. Download now and take control of your heart health!

What We Love

  • 👍 Accurate heart rate measurements
  • 📊 Helpful for tracking health conditions
  • 🗓️ Ability to save and review past readings
  • 💻 Easy to use interface

Room to Improve

  • 📺 Excessive advertisements that interfere with usage
  • 🔒 Subscription required for full functionality
  • 🔢 Limited number of free daily measurements

More Heart Arrhythmia apps to explore

4
ECG+ | Your Watch ECG Reader
ECG+ | Your Watch ECG Reader
ECG+ | Your Watch ECG Reader
The original ECG analyzer
Free

This application is a comprehensive ECG analyzer that accurately measures QTc intervals for identifying potential cardiac risks. Its user-friendly interface provides detailed analysis to assist healthcare professionals in making informed decisions. Try it now for efficient ECG interpretation and monitoring.

🏥 Medical
(2.2K)
5
ECG heart analyze - watch
ECG heart analyze - watch
ECG heart analyze - watch
EKG, HRV, Stress monitor
Free

Unlock the secrets of your heart's rhythm with the ECG Insight App for Apple Watch. Monitor your heart health through EKG, HRV, and stress analysis, receive personalized insights, and track your well-being over time. Start your journey towards optimal well-being today.

💪 Health & Fitness
(1.3K)
6
arrhythmia
arrhythmia
arrhythmia
Practice reading EKGs, lead II
Free

Practice reading EKGs in lead II with this app, which offers Study Mode to view and compare rhythms, and Game Mode to challenge yourself to identify rhythms. Improve your EKG interpretation skills with a subscription and take your abilities to the next level.

🏥 Medical
(87)
7
iCardiac: Frequencia Cardiaca
iCardiac: Frequencia Cardiaca
iCardiac: Frequencia Cardiaca
Heart Rate, Blood Pressure App
Free

Monitor and track your heart health with an innovative app that provides precise heart rate monitoring, blood pressure tracking, and personalized insights for optimizing your cardiovascular well-being. Download now for a healthier heart and a fulfilling life.

💪 Health & Fitness
(3.7K)
8
Instant Heart Rate: HR Monitor
Instant Heart Rate: HR Monitor
Instant Heart Rate: HR Monitor
Pulse Tracker & Stress Test
Free

Track your heart rate instantly using your smartphone camera. Get real-time heart rate measurements, track your fitness progress, and stay on top of your health goals with ease. Download now and take control of your heart health.

💪 Health & Fitness
(229K)
9
Qaly | ECG Reader
Qaly | ECG Reader
Qaly | ECG Reader
Your ECGs, Read by Experts
Free

Get expert analysis of your ECG readings within minutes on the Qaly app, led by Stanford cardiologists. Easily interpret irregular heart rhythms and intervals with human expert interpretations. Join 100K heart heroes for peace of mind today.

💪 Health & Fitness
(827)
10
Kardia
Kardia
Kardia
by AliveCor, Inc.
Free

Record and monitor your heart's activity with Kardia's FDA-cleared personal EKG devices. Instantly detect common arrhythmias, share data with your doctor, and track your heart health history from the comfort of home. Get the Kardia device and start taking control of your heart health today.

🏥 Medical
(217K)
11
Heart Rate Monitor - Pulse HR
Heart Rate Monitor - Pulse HR
Heart Rate Monitor - Pulse HR
Heart Beat & Pulse Tracker App
Free

Monitor your heart rate with precision using Pulse HR. Get real-time updates on your pulse to keep track of your cardiovascular health effortlessly. Download now and prioritize your heart's well-being.

💪 Health & Fitness
(9K)
12
Heart Analyzer: Pulse Tracker
Heart Analyzer: Pulse Tracker
Heart Analyzer: Pulse Tracker
Watch Health & Cardio Metrics
Free

Track your heart rate, analyze your pulse, and monitor your overall health with real-time updates. Stay on top of your well-being with personalized insights and trends to help you achieve your fitness goals effortlessly.

💪 Health & Fitness
(22K)
13
HeartScan: Heart Rate Monitor
HeartScan: Heart Rate Monitor
HeartScan: Heart Rate Monitor
Instant Pulse & Rhythm Check
Free

Monitor, store, and share heart performance with an AI-based app. Get accurate heart rate measurements and detailed cardiac cycle data instantly. Export results for tracking progress and easily share with healthcare professionals.

💪 Health & Fitness
(50)
14
Instant ECG - Mastery of EKG
Instant ECG - Mastery of EKG
Instant ECG - Mastery of EKG
Electrocardiogram Rhythm Guide
$5.99

An essential Electrocardiogram guide designed for healthcare professionals, Instant ECG offers detailed ECG rhythm explanations and exam practice. Developed by iAnesthesia LLC, it's a top-rated resource for mastering EKG interpretations.

🏥 Medical
(501)
15
Cardiograph
Cardiograph
Cardiograph
Measure your heart rate
$1.99

Monitor your heart rate using just your device's camera with this fast and reliable application. Track, share, and print your heart rate measurements easily for better cardiovascular health management. Get accurate results instantly with a clean and intuitive design.

💪 Health & Fitness
(2.3K)
16
Heart Rate Monitor - HeartIn
Heart Rate Monitor - HeartIn
Heart Rate Monitor - HeartIn
Blood Pressure & Pulse Tracker
Free

Monitor your heart rate and blood pressure with ease using this application. Stay on top of your health by tracking and analyzing your vitals effortlessly. Download now for better health monitoring.

💪 Health & Fitness
(1.4K)
17
Pulse & Heart Rate Monitor
Pulse & Heart Rate Monitor
Pulse & Heart Rate Monitor
HR, Blood Pressure App& Oxygen
Free

Track your pulse and blood pressure with precision using our innovative Heart Rate Monitor app. Monitor your health, receive fitness insights, and improve well-being with features like accurate heart rate measurements, blood pressure logging, breathing exercises, and workout intensity tracking. Stay on top of your fitness levels effortlessly.

💪 Health & Fitness
(6.3K)
18
MyZio
MyZio
MyZio
Symptom logging for MyZio
Free

MyZio is a symptom logging app designed for use with the Zio ECG monitor. Track your monitor's shipping status, log symptoms, and access helpful information while using the monitor. Sign up, track shipping, log symptoms, and get information easily with MyZio.

🏥 Medical
(56K)
19
ECG Pro | Road to Mastery
ECG Pro | Road to Mastery
ECG Pro | Road to Mastery
ECG Made Easy
Free

Experience the ultimate ECG learning tool with thousands of real-world cases and professional interpretations. Perfect for medical students, doctors, and healthcare providers looking to enhance their ECG reading skills. Join over 5 million users today and sharpen your knowledge!

🏥 Medical
(3.6K)
20
Wellthly-Feel Heart Rhythm
Wellthly-Feel Heart Rhythm
Wellthly-Feel Heart Rhythm
Care about your health
Free
💪 Health & Fitness
(2.4K)