# Evidence Atlas vs ECHO On

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.

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.

## The numbers

| Metric | Evidence Atlas | ECHO On |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/evidence-atlas/id1437702743/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/echo-on/id1519707786/reviews)** |
| Number of ratings | 6 | **15** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | Free | Free |
| Size | 48 MB | 414 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Tom Fadial](https://appshunter.io/developer/1316852248) | [Robert Arrigo](https://appshunter.io/developer/1519707788) |

## What reviewers say

### Evidence Atlas

[App page](https://appshunter.io/ios/app/evidence-atlas/id1437702743)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ECHO On

[App page](https://appshunter.io/ios/app/echo-on/id1519707786)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*