ECG Rhythms: Practice Strips
A new strip every time
Free · Designed for iPad. Not verified for macOS.
Most ECG apps ship a fixed library of tracings. Work through it twice and you stop reading the strip: you start recognising the picture. Then the real thing looks nothing like the picture.
This app generates every strip from scratch. Pick atrial fibrillation and you get a different atrial fibrillation every time, with its own rate, its own irregularity, its own baseline. You cannot memorise your way through it, which is the point.
WHAT YOU GET
Thirty-one rhythms, drawn on a real 25 mm/s, 10 mm/mV grid with a calibration pulse. Sinus rhythms including arrhythmia and pause. Atrial fibrillation and flutter. Supraventricular and junctional rhythms. All four AV blocks. PACs and PVCs, the R-on-T phenomenon, ventricular tachycardia, torsades de pointes, idioventricular and agonal rhythms, ventricular fibrillation and asystole. Paced rhythms, atrial, ventricular and dual-chamber, plus failure to capture and failure to sense.
CHOOSE HOW HARD IT IS
Answer from a list while you are learning, then switch to open response and name the rhythm yourself with nothing to pick from. Shorthand works, so afib, vtach and Wenckebach all find it.
Set the signal quality. Clean is the textbook tracing. Realistic adds the wander and muscle noise of a cooperative patient. Noisy is the strip nobody trains on and everybody eventually gets.
SEE WHY, NOT JUST WHETHER
Every answer comes with the criteria that define the rhythm, the measured rate, PR, QRS and QT off that exact tracing, and an explanation of why it is not the rhythm you confused it with.
MONITOR MODE
Recognising a rhythm as it sweeps across a monitor is a different skill from reading a still strip, and it is the one you need at the bedside. Almost nothing else trains it.
TRACK WHAT IS STILL SHAKY
The rhythms you miss come back more often. The progress page tells you which ones you have down, which ones keep catching you out, and which pairs you are mixing up.
ONE PRICE
Everything is included. No subscription, no ads, nothing locked behind a second purchase. Works completely offline.
For education and exam preparation. Not a medical device and not for clinical diagnosis or patient care.
Ratings & Reviews
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New: Measure It.
Naming the rhythm is only half the exam. Measure It asks for the rate, the PR interval, or the QRS duration on the strip in front of you, and grades what you type against the strip's own numbers. Not every quantity exists on every rhythm; a strip with nothing fair to measure tells you that, which is itself the finding.
Fixed: the rate-counting hint now says to turn the phone. The strip is six seconds, but portrait only shows about three, so counting complexes in portrait was giving half the real rate.
The developer, FLETCHER REECE STOBAUGH, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- FLETCHER REECE STOBAUGH
- Size
- 1.2 MB
- Category
- Medical
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
- Copyright
- © 2026 Momentum Apps LLC