# EchoRef vs ECHO On

The clearest difference is update cadence: ECHO On at weekly against EchoRef's every 2 months. ECHO On also leads on iOS requirement (15.6 vs 26.0). EchoRef's advantage is ratings volume (1.4K vs 14). On price, rating, review sentiment and ads 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 — 4.9 for EchoRef against 4.9 for ECHO On. That said, the two scores are not equally well evidenced: EchoRef has 1.4K ratings behind it against 14, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

EchoRef ships an update every 2 months, ECHO On weekly. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | EchoRef | ECHO On |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (1.4K ratings)](https://appshunter.io/ios/app/echoref/id1434016053/reviews) | [4.9 (14 ratings)](https://appshunter.io/ios/app/echo-on/id1519707786/reviews) |
| Number of ratings | **1.4K** | 14 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 105 MB | 414 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Rishi Kumar](https://appshunter.io/developer/1434016052) | [Robert Arrigo](https://appshunter.io/developer/1519707788) |

## What reviewers say

### EchoRef

[App page](https://appshunter.io/ios/app/echoref/id1434016053)

This educational reference app provides comprehensive information on point-of-care ultrasound (POCUS), echocardiography, and cardiac measurements. It includes lessons on interventional procedures and hemodynamic calculations for medical professionals.

**Highlights:** Point-of-care ultrasound (POCUS), Transthoracic echocardiography (TTE), Transesophageal echocardiography (TEE), Cardiac dimensions and valve measurements, Hemodynamic and ultrasound calculations, Interventional procedure lessons

**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 EchoRef free?

EchoRef 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, EchoRef or ECHO On?

EchoRef and ECHO On are both rated 4.9 out of 5 on the App Store, from 1.4K and 14 ratings respectively.

### Do EchoRef or ECHO On have ads?

Neither EchoRef nor ECHO On shows ads.

### Which is updated more often, EchoRef or ECHO On?

EchoRef ships an update every 2 months, and ECHO On weekly. Most recently, EchoRef was updated on September 18, 2026 and ECHO On on September 10, 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.*