# ECHO On vs AngioAID 3D

The clearest difference is rating: ECHO On at 4.9 against AngioAID 3D's 4.0. ECHO On also leads on ads (none vs shown) and update cadence (weekly vs every 28 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

ECHO On holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: ECHO On has 14 ratings behind it against 1, so its average is the more settled of the two.

ECHO On ships an update weekly, AngioAID 3D every 28 months. The most recent releases landed on September 10, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | ECHO On | AngioAID 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/echo-on/id1519707786/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/angioaid-3d/id1639925845/reviews) |
| Number of ratings | **14** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 28 months |
| Monetization | **Free** | Ad-supported |
| Size | 414 MB | 92 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Robert Arrigo](https://appshunter.io/developer/1519707788) | [Cardiology Apps LLC](https://appshunter.io/developer/1639925847) |

## 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


### AngioAID 3D

[App page](https://appshunter.io/ios/app/angioaid-3d/id1639925845)

An interactive 3D simulation for learning diagnostic angiography of coronary arteries. Practice advancing catheters, manipulating views, and injecting dye in a realistic environment. Includes review modes with key anatomical and procedural information.

**Highlights:** 3D live simulation of coronary angiography, Interactive guidewire and catheter manipulation, Hemodynamic monitoring, C-Arm angle adjustment, Dye injection and cine comparison, Review Mode with anatomical insights, Tutorial video

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECHO On free?

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

### Is AngioAID 3D free?

AngioAID 3D is free to download, with no in-app purchases.

### Which has better reviews, ECHO On or AngioAID 3D?

ECHO On is rated higher. ECHO On averages 4.9 out of 5 from 14 ratings, while AngioAID 3D averages 4.0 from 1 ratings.

### Do ECHO On or AngioAID 3D have ads?

AngioAID 3D shows ads; ECHO On does not.

### Which is updated more often, ECHO On or AngioAID 3D?

ECHO On ships an update weekly, and AngioAID 3D every 28 months. Most recently, ECHO On was updated on September 10, 2026 and AngioAID 3D on June 11, 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.*