Best Arrhythmia Apps

248+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated October 2026

Out of 248+ arrhythmia apps on iOS, 19 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 (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1arrhythmiaarrhythmiaFree4.1★ (113)NoYesOct 2026
2KardiaKardiaFree4.8★ (238K)NoNoOct 2026
3Cardiio: Heart Rate MonitorCardiio: Heart Rate MonitorFree4.7★ (58K)NoYesOct 2026
4ECG+ | Your Watch ECG ReaderECG+ | Your Watch ECG ReaderFree4.5★ (2.6K)NoYesOct 2026
5ECG FlashCardsECG FlashCardsFree3.5★ (4)NoNoMay 2026
6Preventicus Heartbeats.Preventicus Heartbeats.Free4.0★ (93)NoYesOct 2026
7ECG APPtitudeECG APPtitudeFree4.3★ (7)NoNoOct 2026
8HeartScan: Heart Rate MonitorHeartScan: Heart Rate MonitorFree3.6★ (52)YesYesOct 2026

Top Picks for Arrhythmia

arrhythmia#1

arrhythmia by Single Sail Software, LLC

Practice reading EKGs, lead II
Editor's Choice
🏥 Medical
4.1😐(113 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.

What We Love

  • 👍 Great study tool for EKGs
  • 👍 Helpful for understanding EKGs
  • 👍 Good for practicing rhythm recognition
  • 👍 Interactive and colorful design
  • 👍 Dynamic testing
  • 👍 Worth the extra purchase for full features
  • 👍 Simplistic way to do basic ECG reading
  • 👍 Great for refresher courses
  • 👍 Good bang for your buck
  • 👍 Excellent for rapid rhythm analysis
  • 👍 Great for learning heart blocks

Room to Improve

  • 👎 Immediately asks for paid version
  • 👎 Missing common and important rhythms
  • 👎 Rhythms are unrealistic
  • 👎 Cannot try before signing up
  • 👎 Clunky and slow horizontal scrolling
  • 👎 Not free
  • 👎 Tracks when watch is not on
  • 👎 Does not work on Apple Watch
  • 👎 Repetitive, needs multiple examples
  • 👎 Profiteering by locking rhythms
  • 👎 No explanation or rationale provided
  • 👎 Waste of money
  • 👎 Huge disappointment
  • 👎 Not useful for learning interpretation
  • 👎 No rationales
  • 👎 Needs work to be worth the price
  • 👎 Everything is locked down
Kardia#2
4.8😊(238K ratings)
Free
#76in Medical
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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
  • 💡 Allows remote monitoring of heart conditions

Room to Improve

  • 🔒 Requires subscription to unlock advanced features
  • 🔋 Battery life issues
  • 🔌 Connectivity problems
  • 🤔 Inconsistent or inaccurate readings
  • 💰 Expensive device and subscription
Cardiio: Heart Rate Monitor#3

Cardiio: Heart Rate Monitor by Cardiio, Inc.

HR checker & beat analyzer
Worth Considering
💪 Health & Fitness
4.7😊(58K ratings)
FreeIn-App Purchases
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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

More Arrhythmia apps to explore

FAQ about Arrhythmia

What are the best arrhythmia apps for iPhone?
arrhythmia tops our arrhythmia apps ranking as of October 2026, with a 4.1-star average from 113 App Store ratings, and it's free to download.
Yes — 19 of the top arrhythmia apps we rank are free to download, including arrhythmia and Kardia.
arrhythmia has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 248+ arrhythmia apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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