# EchoSource vs STEMIcathAID

The clearest difference is price: STEMIcathAID at Free against EchoSource's $1.99. STEMIcathAID also leads on rating (3.3 vs 2.8) and update cadence (every 3 months vs every 18 months). EchoSource's advantage is iOS requirement (12.0 vs 15.1). On ratings volume, ads, in-app purchases and device support there is nothing between them.

STEMIcathAID is free to download; EchoSource costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

STEMIcathAID holds the better App Store score, 3.3 against 2.8. Both are backed by a comparable volume of ratings — 6 and 8 respectively.

EchoSource ships an update every 18 months, STEMIcathAID every 3 months. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | EchoSource | STEMIcathAID |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [2.8 (6 ratings)](https://appshunter.io/ios/app/echosource/id532460804/reviews) | **[3.3 (8 ratings)](https://appshunter.io/ios/app/stemicathaid/id1482930279/reviews)** |
| Number of ratings | 6 | **8** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 140 MB | 71 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ECGsource LLC](https://appshunter.io/developer/377139096) | [Icahn School of Medicine at Mount Sinai](https://appshunter.io/developer/972625667) |

## What reviewers say

### EchoSource

[App page](https://appshunter.io/ios/app/echosource/id532460804)

This medical reference app offers a comprehensive guide to echocardiography, featuring a searchable index of specialized topics and a database of over 90 images and videos. It's designed for cardiologists and trainees to quickly reference diagnostic criteria and clinical disorders.

**Highlights:** Searchable index of specialized echocardiography topics, Database of over 90 figures, images, and videos, Detailed overview of clinical disorders, Evaluation using echocardiography, Reviews of pertinent medical literature, Reference for guideline-based diagnostic criteria

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### STEMIcathAID

[App page](https://appshunter.io/ios/app/stemicathaid/id1482930279)

This medical app streamlines STEMI treatment by optimizing patient recognition, response, and record-keeping. It enhances communication and coordination among healthcare providers, reducing critical time to reperfusion for high-risk patients. Features include EKG upload, cardiogenic shock assessment, and live GPS tracking.

**Highlights:** EKG upload via smartphone, Cardiogenic shock assessment, STEMI patient transfer pathway, Live GPS tracking of EMS, HIPAA compliant encrypted collaboration, Notification system for cath lab preparation

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EchoSource free?

EchoSource costs $1.99, with no in-app purchases.

### Is STEMIcathAID free?

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

### Which has better reviews, EchoSource or STEMIcathAID?

STEMIcathAID is rated higher. EchoSource averages 2.8 out of 5 from 6 ratings, while STEMIcathAID averages 3.3 from 8 ratings.

### Do EchoSource or STEMIcathAID have ads?

Neither EchoSource nor STEMIcathAID shows ads.

### Which is updated more often, EchoSource or STEMIcathAID?

EchoSource ships an update every 18 months, and STEMIcathAID every 3 months. Most recently, EchoSource was updated on October 2, 2026 and STEMIcathAID on September 28, 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.*