# Instant ECG: 12-Lead Simulator — EKG Rhythm Strips & STEMI Quiz > Live EKG and 12-lead simulator with textbook and adaptive practice questions. (iPhone/iPad app by iAnesthesia LLC.) - Source: https://appshunter.io/ios/app/instant-ecg-12-lead-simulator/id301270080 (this page in markdown: same URL + `.md`) - Developer: [iAnesthesia LLC](https://appshunter.io/developer/293134324) - Category: Medical, Education - Price: Free with in-app purchases (on sale, was $5.99) - Rating: 4.10/5 from 527 App Store ratings · 168 written reviews indexed - Age rating: 12+ - Requires: iOS 26.0 · 8 MB - Languages: American English - Released: 2009-01-06 - Data updated: 2026-11-13 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/instant-ecg-12-lead-simulator/id301270080/reviews.md ## What is Instant ECG? Learn to read EKGs on strips that move like a real monitor. Instant ECG is a live rhythm and 12-lead simulator written by physicians, with a built-in EKG textbook and practice questions that adapt to your level. Built for nursing and paramedic students, EMTs, monitor techs, ACLS candidates, PAs, residents and anyone who wants to read rhythms with confidence. LIVE RHYTHM SIMULATOR • 27 rhythms, from normal sinus to VF, asystole and PEA • Variants that matter: AF with RVR, 2:1 to variable flutter, Wenckebach 3:2 to 5:4, Mobitz II, complete block with junctional or ventricular escape, torsades, coarse and fine VF • Three leads at once: the best lead for each rhythm plus two that help confirm it • QRS beep and bedside-style monitor alarms • Swipe through rhythms, adjust rate and gain, freeze the sweep 12-LEAD, STEMI & MIMICS • Landscape 12-lead EKG grid • 29 ischemia and infarction patterns, organized by injured wall and likely culprit artery • Time-lapse an MI from hyperacute T waves to old Q waves • STEMI equivalents: Wellens, de Winter, posterior MI, left main pattern • Infarcts hidden by LBBB and pacing (Sgarbossa) • Mimics side by side: pericarditis, early repolarization, LVH strain, hyperkalemia, Brugada, Takotsubo, PE • Right-sided and posterior leads (V4R, V7–V9) ECG BASICS: A 20-CHAPTER BOOK • From the conduction system to STEMI equivalents, electrolytes, artifact, running a code, pacemakers and ICDs • Short, high-yield chapters with live strips inside the text • Rate, regularity, P wave, PR and QRS criteria for every rhythm • Full-text search ADAPTIVE PRACTICE • 557 original questions, almost 200 with live strips • Pick your goal (EMT, paramedic, nursing, ACLS, monitor tech, PA or med student) and start at your level • Questions get harder as you improve, and your misses come back for review • Every answer explains why, with one tap to the strip or the chapter PRIVATE BY DESIGN No account, no ads, no tracking. Your progress stays on your device. Six color schemes, including classic ECG paper and bedside-monitor green, with light and dark modes. Works on iPhone and iPad, portrait and landscape. Free to download and try. One purchase unlocks everything for life, with Family Sharing. No subscription. Bought Instant ECG before? Version 5.0 is unlocked for you at no extra cost. Written by T. Michael Truxillo, M.D. and William S. Trask IV, D.O. Instant ECG is for education and training. It does not record or analyze your own heart rhythm and is not a medical device. ## Key features - Live rhythm and 12-lead EKG simulation - 27 EKG rhythms and 29 ischemia patterns - Built-in 20-chapter EKG textbook - Adaptive practice questions with explanations - Customizable color schemes and modes - Works on iPhone and iPad ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime Ad Removal | $1.99 | one-time | | Exam Bundle | $0.99 | one-time | | ACLS Movie Bundle | $4.99 | one-time | ## What do users think of Instant ECG? Reviews of Instant ECG are mostly positive: the Medical app is rated 4.1/5 from 527 App Store ratings. What users like most: helpful for learning and reviewing ECG/EKG, concise and easy to use. Top complaints: some features locked behind paywall, crashes and bugs reported. Summarized from real user reviews. **Pros** - 🚀 Helpful for learning and reviewing ECG/EKG - 👍 Concise and easy to use - 👍 Great for practice and testing - 👍 Useful for students and professionals - 👍 Excellent teaching tool **Cons** - 🔒 Some features locked behind paywall - 🐛 Crashes and bugs reported - 🔒 Limited free content - 🔋 Drains battery **Commonly reported bugs** - Rhythm strip videos not working - Exams getting stuck on certain questions - Compatibility issues with newer iOS versions **Most requested features** - More rhythm options and difficulty levels - Add treatments and clinical implications for rhythms - Landscape mode support - Ability to save and share ECG readings - Integrate with Apple Watch for live ECG monitoring ## Is Instant ECG safe? Instant ECG: 12-Lead Simulator appears mostly safe based on user ratings. The AppsHunter Safety Score for Instant ECG is 82 out of 100. This assessment is based on 527 user ratings, with an App Store average of 4.1 out of 5. Of 527 App Store ratings, 78.4% point to a safe experience, 3.4% suggest some concerns, and 18.2% point to a risky experience. ## Is Instant ECG legit? Instant ECG: 12-Lead Simulator appears to be a legitimate app. The AppsHunter Legitimacy Score for Instant ECG is 95 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (10 of 168) All indexed reviews: https://appshunter.io/ios/app/instant-ecg-12-lead-simulator/id301270080/reviews.md ### 5/5 — Paramedic *2026-04-15, version 3.5* Excellent ### 5/5 — Very helpful *2026-02-02, version 3.5* It's the best ecg app I've ever used so far ### 4/5 — Like *2026-01-29, version 3.5* Excellent app for advanced and beginner EKG readers ### 5/5 — Best app for learning ECG *2025-11-30, version 3.5* Best app I’ve found for learning and testing myself for ECG and medic. ### 4/5 — Very helpful *2025-10-16, version 3.5* I try to brush up on ECGs as much as possible and this definitely helps me whether at the house or in between calls. ### 5/5 — Great app! *2025-08-17, version 3.5* A really nice tool for review, brushing up on rhythms, and learning. I love it! ### 4/5 — Great learning support *2025-07-08, version 3.5* Helps me review and prepare for ACLS. ### 5/5 — Reviewer *2025-03-06, version 3.5* Good educational app. ### 5/5 — Excellent reminder ! *2025-01-23* Thanks for this excellent reminder ### 5/5 — Very Helpful *2024-10-28, version 3.5* I'm studying for a test. This made me realize I don't know anything! It's worth the price. I love the exams and the explanations to help me study. ## Frequently asked questions about Instant ECG ### What is Instant ECG? Instant ECG is a medical education app that simulates live EKG rhythm strips and 12-lead EKGs. It includes a textbook and adaptive practice questions to help users learn and master EKG interpretation. ### Who is Instant ECG for? This app is designed for healthcare students and professionals such as nursing students, paramedics, EMTs, monitor techs, ACLS candidates, PAs, and residents who need to confidently read EKGs. ### Does Instant ECG have ads? No, Instant ECG is private by design and does not contain ads. Your progress is kept on your device without any tracking. ### How much does Instant ECG cost? Instant ECG is free to download and try. A one-time purchase unlocks all features for life, and it supports Family Sharing. There are no subscriptions. ### What kind of EKG rhythms can I simulate? The simulator includes 27 different rhythms, ranging from normal sinus to more complex ones like VF, asystole, PEA, and various block types. It also features variants that matter for accurate learning. ### Can I practice STEMI identification with Instant ECG? Yes, the app features 29 ischemia and infarction patterns, organized by injured wall and likely culprit artery. It also covers STEMI equivalents and infarcts hidden by LBBB and pacing. ### How does the adaptive practice work in Instant ECG? The app offers 557 original questions, with almost 200 featuring live strips. You can select your goal (e.g., EMT, nursing, PA) and start at your level. Questions become harder as you improve, and missed questions reappear for review. ### Is Instant ECG a medical device? No, Instant ECG is strictly for educational and training purposes. It does not record or analyze your own heart rhythm and is not a medical device. ## Version history (last 5 releases) ### 5.0 — 2026-11-13 Instant ECG 5.0 is a complete rebuild. • Live rhythm simulator: 27 rhythms with variants, 3 leads at once, QRS beep and monitor alarms • Landscape 12-lead with 29 ischemia, infarction and mimic patterns, plus MI time-lapse • ECG Basics: a 20-chapter book with live strips and search • Practice: 557 adaptive questions that meet you at your level • Six color schemes with light and dark modes, on iPhone and iPad Bought Instant ECG before? Everything is unlocked for you at no extra cost. ### 3.5 — 2019-08-27 In this update you will find bug fixes for videos that were not playing correctly and text that was not displaying correctly. If you have any questions, suggestions or just want to chat, email us at support@ianesthesia.org. ### 3.4 — 2018-02-06 A new year and a new update, the following should make using the app more helpful. If you would like to see a feature added to Instant ECG, please let Dr. Truxillo and Dr. Trask know by emailing InstantECG@iAnesthesia.org ### 3.3 — 2017-12-12 New Apple Watch App - Dr. Truxillo and Dr. Trask want to continue adding value to Instant ECG, if there is anything you'd like to see added to Instant ECG please let us know support@ianesthesia.org ### 3.2 — 2017-04-07 Minor Updates for iPad Instant ECG ## Apps similar to Instant ECG | App | Rating | Price | Category | | --- | --- | --- | --- | | [ECG / EKG Explained Clearly](https://appshunter.io/ios/app/ecg-ekg-explained-clearly/id1546551349) | 4.7 (6) | Free | Medical | | [Paramedic PASS](https://appshunter.io/ios/app/paramedic-pass/id1496171381) | 3.1 (11) | $37.99 | Medical | | [arrhythmia](https://appshunter.io/ios/app/arrhythmia/id996560473) | 4.1 (113) | Free | Medical | | [ECG Practice](https://appshunter.io/ios/app/ecg-practice/id6740402133) | 4.2 (18) | Free | Medical | | [Critical Med: ICU & ACLS Prep](https://appshunter.io/ios/app/critical-med-icu-and-acls-prep/id504065732) | 4.8 (1,158) | $29.99 | Medical | | [12 Lead ECG Challenge](https://appshunter.io/ios/app/12-lead-ecg-challenge/id461149429) | 3.3 (4) | $5.99 | Medical | ## More apps by iAnesthesia LLC - [Drug Infusion - IV Medications](https://appshunter.io/ios/app/drug-infusion-iv-medications/id311096766) - [ECHO Views - Transesophageal Echocardiography](https://appshunter.io/ios/app/echo-views-transesophageal-echocardiography/id447218400) - [ACLS Rhythms and Quiz](https://appshunter.io/ios/app/acls-rhythms-and-quiz/id514350557) - [Pedi Safe Pediatric Anesthesia](https://appshunter.io/ios/app/pedi-safe-pediatric-anesthesia/id1193011121) - [ACLS Exam Review - Test Prep for Mastery](https://appshunter.io/ios/app/acls-exam-review-test-prep-for-mastery/id1218440414) All apps by iAnesthesia LLC: https://appshunter.io/developer/293134324 ## Related topics [ecg interpretation mie](https://appshunter.io/ios/topics/ecg-interpretation-mie) · [ecg check](https://appshunter.io/ios/topics/ecg-check) · [welltory](https://appshunter.io/ios/topics/welltory) · [apple ecg app](https://appshunter.io/ios/topics/apple-ecg-app) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-13.*