Best Arrhythmia Apps

247+ iOS apps curated and reviewed

4.3 avg rating
17 free apps
Updated September 2026

Out of 247+ arrhythmia apps on iOS, 17 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 (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1arrhythmiaarrhythmiaFree4.2★ (111)NoYesAug 2026
2Cardiio: Heart Rate MonitorCardiio: Heart Rate MonitorFree4.7★ (58K)NoYesSep 2026
3ECG FlashCardsECG FlashCardsFree3.5★ (4)NoNoMay 2026
4KardiaKardiaFree4.8★ (232K)NoNoSep 2026
5ECG+ | Your Watch ECG ReaderECG+ | Your Watch ECG ReaderFree4.5★ (2.5K)NoYesSep 2026
6HeartScan: Heart Rate MonitorHeartScan: Heart Rate MonitorFree3.6★ (50)YesYesJul 2026
7ECG APPtitudeECG APPtitudeFree4.3★ (7)NoNoMay 2026
8Preventicus Heartbeats.Preventicus Heartbeats.Free4.0★ (92)NoYesJun 2026

Top Picks for 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

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 September 2026, with a 4.2-star average from 111 App Store ratings, and it's free to download.
Yes — 17 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 September 2026.
We track 247+ arrhythmia apps on the iOS App Store as of September 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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