Echocompanion vs ECHO On
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Echocompanion
This medical app provides reference ranges for echocardiographic parameters based on current guidelines. It includes an echo calculator and educational resources like videos and a book.
- Normal and abnormal echocardiographic ranges
- Latest guideline-based data
- Echo calculator
- Educational videos
- The Book of Echo
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Echocompanion is a dedicated echocardiography tool providing normal and abnormal ranges for various echocardiographic parameters based on the latest available guideline. Also, echo calculator is available. In addition, educational material in the field of echocardiography is available including The Book of Echo and many educational videos. Sami Ghazal MD, FASE, FACC, FESC
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 Echocompanion's every 8 months. ECHO On also leads on ratings volume (14 vs 2). On price, rating, ads and in-app purchases 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 Echocompanion against 4.9 for ECHO On. That said, the two scores are not equally well evidenced: ECHO On has 14 ratings behind it against 2, so its average is the more settled of the two.
Echocompanion ships an update every 8 months, ECHO On weekly. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.
| Parameter | Echocompanion | ECHO On |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.9 (14 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 14 — better |
| Update frequency | Every 8 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.5 — better | 15.6 |
| Further details — not scored | ||
| Size | 67 MB | 414 MB |
| Age rating | 4+ | 12+ |
| Developer | Sami Ghazal | Robert Arrigo |
Customer experience
Echocompanion
ECHO On
In-app purchases
Echocompanion
No in-app purchases
ECHO On
No in-app purchases







