ECHO On vs EBMRef
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
EBMRef
Access summaries of landmark medical research across specialties. Quickly find key trial details like interventions, outcomes, and clinical relevance for bedside reference. Intended for educational use, it's a supplement to, not a replacement for, professional medical advice.
- Landmark research summaries
- Organized by medical specialty
- Key trial details (name, year, interventions, outcomes)
- Clinical relevance distilled
- Quick bedside access
- Educational and informational
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EBMRef is a comprehensive evidence-based medicine reference for physicians, nurses, advanced practice clinicians, medical students, and other healthcare learners. Review landmark clinical trials, explore concise evidence summaries, learn essential EBM terminology, and quickly find the details that matter for clinical interpretation all in one focused reference. FEATURES • Hundreds of landmark clinical trials across medical and surgical specialties • Concise key takeaways and clinically relevant major findings • Detailed study design, population, interventions, outcomes, and limitations • Browse and filter trials by specialty, publication year, study type, and open-access status • Searchable library of evidence-based medicine terminology and concepts • Direct PubMed links for source verification • Related articles and random trial discovery • Favorites, global search, recent searches, and personal notes EBMRef connects foundational evidence-based medicine concepts with practical clinical research appraisal. Whether you are reviewing a landmark trial, comparing evidence across specialties, or checking study methods and limitations, the app makes relevant information easy to find. Created by Rishi Kumar, MD, FACC (“RK.MD”), an academic adult cardiothoracic anesthesiologist and cardiovascular ICU intensivist committed to free, open-access medical education. Learn more at https://rk.md EBMRef is intended for educational and informational purposes only. It does not provide medical advice and is not a substitute for professional judgment, diagnosis, or treatment. Clinical findings and calculations must be independently verified and interpreted in the context of the individual patient. Seek guidance from a qualified healthcare professional regarding any medical condition. Do not disregard or delay professional medical advice because of information provided by this app.
Screenshots
Verdict
The clearest difference is update cadence: ECHO On at weekly against EBMRef's every 3 weeks. ECHO On also leads on iOS requirement (15.6 vs 26.0). On price, rating, review sentiment and ratings volume 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 — 4.9 for ECHO On against 5.0 for EBMRef. Both are backed by a comparable volume of ratings — 15 and 22 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
ECHO On ships an update weekly, EBMRef every 3 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | ECHO On | EBMRef |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (15 ratings) | 5.0 (22 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 15 | 22 — better |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 414 MB | 8 MB |
| Age rating | 12+ | 17+ |
| Developer | Robert Arrigo | Rishi Kumar |
Customer experience
ECHO On
EBMRef
In-app purchases
ECHO On
No in-app purchases
EBMRef
No in-app purchases









