Comparison

palmEM AI vs SubtleSTEMI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

palmEM AI

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
Currently charting
Read full description

palmEM: Emergency Medicine Quick Reference, Offline Guide, Point-of-Care Reference and AI Clinical Decision Support The most comprehensive EM quick reference ever created, powered by advanced AI. The #1 medical app in 80+ countries. Apple's "What's Hot" and "New and Noteworthy." WHY palmEM? AI that actually understands medicine • Your specific patient scenario. Your exact question. Ask anything in plain language, just like you would ask a colleague, and get tailored clinical guidance in seconds. Not generic overviews or academic deep dives. Real answers for real bedside medicine. The answers you need when seconds count • From routine to rare, common to zebras - get evidence-based clinical decision support in seconds. Skip the scrolling. Skip the page flipping. Get straight to the answer you need. Built by emergency medicine physicians • Clinician-made, clinician-used, continuously updated and refined for real practice. Zero industry influence. And we never sell your data. Works the way you work • Intuitive interface. Dark mode. Minimal taps to answers. Fast, focused, and built for the ED. Offline when you need it • Core reference content is accessible offline, so you are covered even without signal. YOUR COMPLETE EM KNOWLEDGE BASE • Evidence-based workups and management • Differentials, red flags, and next steps • Medication quick reference • Procedures and step-by-step guidance • Pediatric emergencies • Clinical decision rules (HEART, PERC, Wells, Canadian C-Spine, and more) • High-yield content without the fluff TRUSTED BY CLINICIANS WORLDWIDE "I've dumped my $300/year app for palmEM. Cheaper, prettier, faster." —EMtutorials.com "There is so much in here I don't know where to begin. Could I enthuse about this any more?" —Life in the Fast Lane "An excellent, rapid point-of-care reference perfectly designed for the time crunch of the emergency department." —iMedicalApps "The relentless search for an EM app that does it all inevitably leads to palmEM." —Emergency Medicine News PERFECT FOR Emergency Medicine • Urgent Care • Critical Care • Internal Medicine • Family Medicine • Primary Care • EMS • Nursing • Paramedics • NPs • PAs • Medical Students • Residents • Fellows • Attendings TRY RISK-FREE FOR 7 DAYS Start your no-obligation trial. Experience AI-powered clinical support that helps you move faster and think sharper. Download now. Your next shift will thank you. --- DISCLAIMER: This app is intended for medical professionals. It is strictly for educational purposes and is not a substitute for professional medical advice, diagnosis or treatment. Consult with a recognized medical professional before making decisions based on information included in this application. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.palm-er.com/site/privacy-policy/

About

SubtleSTEMI

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
Read full description

Calculator implementing the formula from the paper, "Electrocardiographic differentiation of early repolarization from subtle anterior st-segment elevation myocardial infarction," by Smith, et al.

Screenshots

palmEM AI4 screens
SubtleSTEMI3 screens

Verdict

The call

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 (#88 vs unranked). On price, rating, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 4 level
palmEM AI versus SubtleSTEMI: the parameters behind the verdict, then further details
ParameterpalmEM AISubtleSTEMI
PriceFreeFree
Rating4.2 (75 ratings)4.2 (9 ratings) — better
Positive reviews82.5% of reviews100.0% of reviews — better
Number of ratings75 — better9
Update frequencyEvery 3 weeks — betterEvery 8 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#88 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0.010.0 — better
Further details — not scored
Size139 MB15 MB
Age rating17+17+
DeveloperpalmER Worldwide LLCMark Newcomb

Customer experience

palmEM AI

All ratings72 ratings
Positive79.2%
Neutral5.6%
Negative15.3%
Written reviews97 reviews
Positive82.5%
Neutral4.1%
Negative13.4%

SubtleSTEMI

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

palmEM AI

Reported bugs

8 issues
  • 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
Show 3 more
  • Pages unable to open
  • Blank content display
  • Restore purchases feature not working properly

Requested features

8 requests
  • Add toxidromes section
  • Photo support in note-taking function
  • Swipe-back gesture for faster navigation
  • Procedure images or video links
  • Dark mode option
Show 3 more
  • Restore and improve note-taking functionality
  • More detailed procedure guides
  • Enhanced search capabilities

SubtleSTEMI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

palmEM AI

Subscriptions5
  • Monthly Subscription$9.991 Month
  • Monthly Subscription | Unlimited AI$9.991 Month
  • Monthly Subscription$19.991 Month
Show 2 more
  • Monthly Subscription$29.991 Month
  • Annual Subscription | Unlimited AI7 Days trial2 variants$99.991 Year
None

SubtleSTEMI

No in-app purchases

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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