HEART MASTER Aortic Stenosis vs ECHO On
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HEART MASTER Aortic Stenosis
An immersive 3D educational tool for physicians and medical students focusing on aortic stenosis. Explore heart anatomy, disease progression, and surgical treatments with interactive annotations and a detailed visual guide.
- 3D heart anatomy exploration
- Aortic stenosis pathophysiology visualization
- Surgical treatment step-by-step guide
- Interactive drawing and annotation tools
- Picture gallery for notes
- High technical accuracy
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The EDWARDS HEART MASTER app is a state-of-the art educational service intended for physicians and medical students involved in the treatment of heart valve disease. In this edition, dedicated to AORTIC STENOSIS, the user will experience a unique full 3D immersion in the heart anatomy, as well as pathophysiology and treatment of aortic valve stenosis. With HEART MASTER (iPad only) you can now draw and write directly on the 3D animated content, store notes within your picture gallery, and share easily with your peers. The intuitive interface allows the user to appreciate each anatomical detail, disease status and surgical technique which is described with a high level of technical accuracy. The ANATOMY chapter provides animated contents about the aortic valve structures, ascending aorta, left ventricle, conduction system and their relationship to the mitral valve. The PATHOPHYSIOLOGY section features a detailed step-by-step approach which allows clear understanding of the evolution of aortic valve stenosis including progressive leaflet calcification, valve narrowing, blood flow velocity and hypertrophy of the left ventricle. A detailed 3D animation provides detailed technical information on the cardiac cycle, the natural progression of aortic stenosis and its implications which result in common patient symptoms. The SURGERY chapter describes the most common surgical steps necessary for the replacement of a severely calcified aortic valve with a prosthetic valve. It features sternotomy and aortotomy techniques, as well as aortic valve excision and correct implant techniques for an aortic valve replacement.
ECHO On
This medical education app helps users learn Transesophageal Echocardiography with a question bank, cognitive aid, case log, and reference library. It provides guidance on performing and interpreting a standard 28-view exam, including anatomy, function, and Doppler interrogations.
- Transesophageal Echocardiography education
- Enlarging question bank
- Rescue TEE cognitive aid
- Case Log system
- Perioperative Quick Reference library
- Offline echo loops
- Pathology, technique, and normal loop examples
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ECHO On is a free medical education resource for learning Transesophageal Echocardiography including a free, enlarging question bank, a Rescue TEE cognitive aid, a Case Log system for submission to the NBE, and a growing perioperative Quick Reference library with offline echo loops that work even in the OR without internet access, and includes pathology examples, techniques, and normal loops of the heart. ECHO On will walk you through an entire standard 28 view exam teaching you the anatomy, function and Doppler interrogations you should perform at each view, and how to interpret them. ECHO On is and will remain free, and the best way you can contribute is to submit boards-style questions or echo stills and echo loops to help grow the QBank, Quick Reference and Pathology libraries. Disclaimer: This app was written to provide an accessible perioperative tool for residents and fellows learning TEE in the cardiac OR and ICU, and for generalist anesthesiologists looking to refresh their knowledge of TEE. It is not meant for patients to self-diagnose. It is not meant to be a definitive reference. Despite my best efforts, there may be errors or inaccuracies in this app, so please do not use it for medical decision making, as doing so may lead you misdiagnose or seriously harm your patient. If you are not a qualified medical doctor, please see a qualified medical doctor before making any medical decisions, including those based on echocardiograms.
Screenshots
Verdict
The clearest difference is update cadence: ECHO On at weekly against HEART MASTER Aortic Stenosis's every 15 months. ECHO On also leads on ratings volume (15 vs 2) and device support (3 vs 1). HEART MASTER Aortic Stenosis's advantage is iOS requirement (12.1 vs 15.6). On price, rating, review sentiment and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for HEART MASTER Aortic Stenosis against 4.9 for ECHO On. That said, the two scores are not equally well evidenced: ECHO On has 15 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
HEART MASTER Aortic Stenosis ships an update every 15 months, ECHO On weekly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.
| Parameter | HEART MASTER Aortic Stenosis | ECHO On |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.9 (15 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 15 — better |
| Update frequency | Every 15 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 237 MB | 414 MB |
| Age rating | 17+ | 12+ |
| Developer | Edwards Lifesciences | Robert Arrigo |
Customer experience
HEART MASTER Aortic Stenosis
ECHO On
In-app purchases
HEART MASTER Aortic Stenosis
No in-app purchases
ECHO On
No in-app purchases
Questions
Is HEART MASTER Aortic Stenosis free?
Is ECHO On free?
Which has better reviews, HEART MASTER Aortic Stenosis or ECHO On?
Do HEART MASTER Aortic Stenosis or ECHO On have ads?
Which is updated more often, HEART MASTER Aortic Stenosis or ECHO On?
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