Evidence Atlas vs ECHO On
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Evidence Atlas
This medical reference app offers a visual summary of evidence for point-of-care ultrasound (POCUS) applications. It provides test characteristics and exemplary ultrasound clips to help users understand the utility of POCUS findings against gold standard tests.
- Visual evidence summary for POCUS
- Test characteristics (sensitivity/specificity, likelihood ratio)
- Exemplary ultrasound clips of pathology
- Quick bedside reference
- Links to mobile-friendly POCUS Atlas
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The Evidence Atlas (brought to you by The POCUS Atlas), provides a visual summary of the evidence behind the most commonly utilized and accepted point-of-care (POCUS) applications. Ideal for both learners and educators, this app serves as a quick bedside reference regarding the utility of POCUS findings in relation to a gold standard test. POCUS test characteristics are provided in both sensitivity/specificity and likelihood ratio format. The app also includes exemplary ultrasound clips of pathology with respect to each POCUS application. Users who want to learn more can access the mobile-friendly version of The POCUS Atlas directly through in-app links.
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 Evidence Atlas's every 11 months. ECHO On also leads on device support (3 vs 1). 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 — 4.8 for Evidence Atlas against 4.9 for ECHO On. Both are backed by a comparable volume of ratings — 6 and 15 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Evidence Atlas ships an update every 11 months, ECHO On weekly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Evidence Atlas | ECHO On |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6 ratings) | 4.9 (15 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 6 | 15 — better |
| Update frequency | Every 11 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.6 — better |
| Further details — not scored | ||
| Size | 48 MB | 414 MB |
| Age rating | 17+ | 12+ |
| Developer | Tom Fadial | Robert Arrigo |
Customer experience
Evidence Atlas
ECHO On
In-app purchases
Evidence Atlas
No in-app purchases
ECHO On
No in-app purchases
Questions
Is Evidence Atlas free?
Is ECHO On free?
Which has better reviews, Evidence Atlas or ECHO On?
Do Evidence Atlas or ECHO On have ads?
Which is updated more often, Evidence Atlas or ECHO On?
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