Comparison

Evidence Atlas vs ECHO On

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

Evidence Atlas4 screens
ECHO On4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Evidence Atlas versus ECHO On: the parameters behind the verdict, then further details
ParameterEvidence AtlasECHO On
PriceFreeFree
Rating4.8 (6 ratings)4.9 (15 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings615 — better
Update frequencyEvery 11 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.415.6 — better
Further details — not scored
Size48 MB414 MB
Age rating17+12+
DeveloperTom FadialRobert Arrigo

Customer experience

Evidence Atlas

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ECHO On

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Evidence Atlas

No in-app purchases

None

ECHO On

No in-app purchases

Questions

Is Evidence Atlas free?
Evidence Atlas is free to download, with no in-app purchases.
Is ECHO On free?
ECHO On is free to download, with no in-app purchases.
Which has better reviews, Evidence Atlas or ECHO On?
ECHO On is rated higher. Evidence Atlas averages 4.8 out of 5 from 6 ratings, while ECHO On averages 4.9 from 15 ratings.
Do Evidence Atlas or ECHO On have ads?
Neither Evidence Atlas nor ECHO On shows ads.
Which is updated more often, Evidence Atlas or ECHO On?
Evidence Atlas ships an update every 11 months, and ECHO On weekly. Most recently, Evidence Atlas was updated on November 2, 2026 and ECHO On on November 3, 2026.

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