# palmEM AI vs SubtleSTEMI

The clearest difference is in-app purchases: SubtleSTEMI at none against palmEM AI's 6. SubtleSTEMI also leads on review sentiment (100% vs 82%) and iOS requirement (10.0 vs 14.0.0). palmEM AI's advantage is update cadence (every 3 weeks vs every 8 months) and chart position (#96 vs unranked). On price, rating, ads and device support there is nothing between them.

Both are free to download. palmEM AI sells 5 in-app purchases, starting at $9.99 per month. SubtleSTEMI asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.2 for palmEM AI against 4.2 for SubtleSTEMI. That said, the two scores are not equally well evidenced: palmEM AI has 75 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 82% of palmEM AI's written reviews are positive against 100% of SubtleSTEMI's.

palmEM AI ships an update every 3 weeks, SubtleSTEMI every 8 months. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | palmEM AI | SubtleSTEMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (75 ratings)](https://appshunter.io/ios/app/palmem-ai-em-quick-reference/id481034047/reviews) | **[4.2 (9 ratings)](https://appshunter.io/ios/app/subtlestemi/id617146818/reviews)** |
| Number of ratings | **75** | 9 |
| Positive reviews | 82.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#96** | — |
| Size | 139 MB | 15 MB |
| Requires iOS | 14.0.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [palmER Worldwide LLC](https://appshunter.io/developer/481034130) | [Mark Newcomb](https://appshunter.io/developer/617146821) |

## What reviewers say

### palmEM AI

[App page](https://appshunter.io/ios/app/palmem-ai-em-quick-reference/id481034047)

**Currently charting:** #96 Top Grossing · Medical (US App Store)

This AI-powered emergency medicine guide provides rapid, evidence-based clinical decision support for medical professionals. It offers tailored guidance for specific patient scenarios and a comprehensive knowledge base, accessible offline.

**Highlights:** AI clinical decision support, Plain language medical queries, Evidence-based workups and management, Offline core content access, Medication quick reference, Procedure step-by-step guidance, Clinical decision rules

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Monthly Subscription \| Unlimited AI | $9.99 | per month |
| Monthly Subscription | $19.99 | per month |
| Monthly Subscription | $29.99 | per month |
| Annual Subscription \| Unlimited AI | $99.99 | per year |

**What reviewers like**

- 🚀 Quick and efficient reference tool for ED scenarios
- 👍 Easy-to-navigate interface with logical organization
- 📚 Comprehensive content covering emergency medicine topics
- 🎯 Concise, clinically-relevant information without unnecessary fluff
- 💊 Useful features like Broselow tape and drug dosages

**What reviewers complain about**

- ⚠️ Outdated protocols (ACLS, PALS)
- 🐛 Subscription model confusion and access issues
- 📱 Compatibility problems with newer iOS versions
- 🔄 Lack of regular updates over extended periods
- ❌ Note-taking feature removed or non-functional

**Reported bugs**

- App crashes on latest iOS updates
- Subscription verification fails for previous owners
- Access denied despite full subscription status
- App does not load on iPad
- Note section disappeared after update

**Requested features**

- Add toxidromes section
- Photo support in note-taking function
- Swipe-back gesture for faster navigation
- Procedure images or video links
- Dark mode option


### 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


## Frequently asked questions

### Is palmEM AI free?

palmEM AI is free to download, with in-app purchases available.

### Is SubtleSTEMI free?

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

### Which has better reviews, palmEM AI or SubtleSTEMI?

SubtleSTEMI is rated higher. palmEM AI averages 4.2 out of 5 from 75 ratings, while SubtleSTEMI averages 4.2 from 9 ratings.

### Do palmEM AI or SubtleSTEMI have ads?

Neither palmEM AI nor SubtleSTEMI shows ads.

### Which is updated more often, palmEM AI or SubtleSTEMI?

palmEM AI ships an update every 3 weeks, and SubtleSTEMI every 8 months. Most recently, palmEM AI was updated on October 26, 2026 and SubtleSTEMI on October 23, 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.*