# ECHO On vs Echo Odyssey

The clearest difference is price: ECHO On at Free against Echo Odyssey's $4.99. ECHO On also leads on iOS requirement (15.6 vs 17.0). Echo Odyssey's advantage is chart position (#200 vs unranked). On ads, in-app purchases and device support there is nothing between them.

ECHO On is free to download; Echo Odyssey costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ECHO On | Echo Odyssey |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.9 (15 ratings)](https://appshunter.io/ios/app/echo-on/id1519707786/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free | — |
| Best chart rank | — | **#200** |
| Size | 414 MB | 290 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 17+ |
| Developer | [Robert Arrigo](https://appshunter.io/developer/1519707788) | [Hamad Alsrur](https://appshunter.io/developer/1837965638) |

## What reviewers say

### 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


### Echo Odyssey

[App page](https://appshunter.io/ios/app/echo-odyssey/id6813982938)

**Currently charting:** #200 Top Paid · Medical (US App Store)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ECHO On free?

ECHO On is free to download, with no in-app purchases.

### Is Echo Odyssey free?

Echo Odyssey costs $4.99, with no in-app purchases.

### Do ECHO On or Echo Odyssey have ads?

Neither ECHO On nor Echo Odyssey shows ads.

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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.*