# SubtleSTEMI vs STEMIcathAID

The clearest difference is rating: SubtleSTEMI at 4.2 against STEMIcathAID's 3.3. SubtleSTEMI also leads on iOS requirement (10.0 vs 15.1). STEMIcathAID's advantage is update cadence (every 3 months vs every 8 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

SubtleSTEMI holds the better App Store score, 4.2 against 3.3. Both are backed by a comparable volume of ratings — 9 and 8 respectively.

SubtleSTEMI ships an update every 8 months, STEMIcathAID every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SubtleSTEMI | STEMIcathAID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (9 ratings)](https://appshunter.io/ios/app/subtlestemi/id617146818/reviews)** | [3.3 (8 ratings)](https://appshunter.io/ios/app/stemicathaid/id1482930279/reviews) |
| Number of ratings | **9** | 8 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 15 MB | 71 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Mark Newcomb](https://appshunter.io/developer/617146821) | [Icahn School of Medicine at Mount Sinai](https://appshunter.io/developer/972625667) |

## What reviewers say

### SubtleSTEMI

[App page](https://appshunter.io/ios/app/subtlestemi/id617146818)

This medical app calculates the formula from a specific research paper to help differentiate early repolarization from subtle anterior ST-segment elevation myocardial infarction. It provides a tool for medical professionals to aid in diagnosis.

**Highlights:** ECG formula implementation, Differentiates early repolarization, Identifies subtle anterior ST-segment elevation myocardial infarction, Diagnostic aid for medical professionals

**Features:** macOS Compatibility

**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 SubtleSTEMI free?

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

### Is STEMIcathAID free?

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

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

SubtleSTEMI is rated higher. SubtleSTEMI averages 4.2 out of 5 from 9 ratings, while STEMIcathAID averages 3.3 from 8 ratings.

### Do SubtleSTEMI or STEMIcathAID have ads?

Neither SubtleSTEMI nor STEMIcathAID shows ads.

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

SubtleSTEMI ships an update every 8 months, and STEMIcathAID every 3 months. Most recently, SubtleSTEMI was updated on November 1, 2026 and STEMIcathAID 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.*