ECGRef
ECG & Arrhythmia Reference
Free · Designed for iPad. Not verified for macOS.
ECG interpretation, organized for the bedside.
ECGRef is a comprehensive electrocardiogram reference for physicians, nurses, advanced practice clinicians, medical students, and other healthcare learners. Use a structured interpretation workflow, review rhythm patterns, explore ECG leads, check diagnostic criteria, and perform commonly used ECG calculations all in one focused reference.
FEATURES
• Step-by-step ECG interpretation workflow
• Rhythm recognition and clinically relevant pattern review
• Interactive frontal-plane and precordial lead explorer
• Searchable library of ECG terminology and concepts
• ECG calculators for heart rate, QTc, cardiac axis, ventricular hypertrophy, bundle branch block, wide-complex tachycardia, and more
• Clinical risk tools
• Bedside takeaways, common pitfalls, and “do not miss” findings
• Favorites, global search, related content, and personal notes
ECGRef connects core electrophysiology with practical ECG analysis. Whether you are learning a systematic approach, reviewing an unfamiliar rhythm, or checking a calculation, the app makes relevant information easy to find.
Created by Rishi Kumar, MD, FACC (“RK.MD”), an academic adult cardiothoracic anesthesiologist and cardiovascular ICU intensivist committed to free, open-access medical education. Learn more at https://rk.md
ECGRef is intended for educational and informational purposes only. It does not provide medical advice and is not a substitute for professional judgment, diagnosis, or treatment. Clinical findings and calculations must be independently verified and interpreted in the context of the individual patient. Seek guidance from a qualified healthcare professional regarding any medical condition. Do not disregard or delay professional medical advice because of information provided by this app.
Added: Lead Explorer and ECG Interpret tab
Updated: Revised medical calculators for guideline accuracy, corrected formulas, and input limits
The developer, Rishi Kumar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Rishi Kumar
- Size
- 13.5 MB
- Category
- Medical
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
- Copyright
- © Rishi Kumar, MD