EF vs EchoGuide by ASE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EF
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EF: ejection fraction, an iPhone and Apple Watch application, can calculate ejection fraction easily. Teichholz formula is used to calculate EF.
EchoGuide by ASE
This medical app offers over 50 calculators, algorithms, and charts based on key guidelines for cardiac care professionals. It allows users to favorite interactive tools for quick access to a wide range of echocardiography measurements and assessments.
- Over 50 calculators, algorithms, and charts
- Based on ASE guidelines
- Favorite interactive tools
- Cardiac care reference
- Echocardiography measurements
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ASE’s EchoGuide provides access to over 50 calculators, algorithms, and charts. EchoGuide was developed based on key ASE guidelines for use by healthcare professionals providing cardiac care. One special feature in the app is that users have the ability to select their favorite interactive tools for easy access. Topics include: • Left Ventricle • Left Ventricle Mass • Left Ventricular Diastolic Function • Right Ventricle • Left Atrium • Right Atrium Dimensions & Volumes • Aorta • Aortic Regurgitation • Aortic Stenosis • Mitral Regurgitation • Mitral Stenosis • Tricuspid Regurgitation • Tricuspid Stenosis • Pulmonic Regurgitation • Pulmonic Stenosis • Prosthetic Aortic Valve Function • Prosthetic Mitral Valve Function • Prosthetic Tricuspid Valve Function • Prosthetic Pulmonic Valve Function • Prosthetic Valve Regurgitation EchoGuide is intended for educational/informational use only. EchoGuide is not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of disease by aiding clinical decision-making. Please send feedback through the App information page and feel free to leave a review and rating in the App Store.
Screenshots
Verdict
The clearest difference is update cadence: EchoGuide by ASE at monthly against EF's every 48 months. EF's advantage is iOS requirement (12.0 vs 14.2). On price, ads, in-app purchases and device support 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.
EF ships an update every 48 months, EchoGuide by ASE monthly. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.
| Parameter | EF | EchoGuide by ASE |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (41 ratings) — better |
| Positive reviews | — | 75.0% of reviews |
| Number of ratings | — | 41 — better |
| Update frequency | Every 48 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 14.2 |
| Further details — not scored | ||
| Size | 22 MB | 96 MB |
| Age rating | 17+ | 12+ |
| Developer | Keiji Matsui | American Society of Echocardiography |
In-app purchases
EF
No in-app purchases
EchoGuide by ASE
No in-app purchases
