Comparison

ECG EKG Interpretation Mastery vs AHA ACLS

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

Head to head
About

ECG EKG Interpretation Mastery

Learn to interpret ECGs with this comprehensive app. It offers study materials, practice ECG strips, and essential clinical facts to help you understand abnormal EKGs and master 12-lead interpretations.

Highlights
  • Master ECG interpretation
  • Comprehensive guides and tips
  • No more big books
  • Lead placement diagrams
  • Dozens of 12-lead ECGs
  • Practice tools with heart rhythms
Features
Currently charting
Read full description

The simplest way to learn ECG interpretation. Study on-the-go with ECG strips, full-color graphics, up-to-date information tables, core clinical facts, and never again be confused by a 12-lead ECG or wonder what an abnormal EKG means. Download ECG Mastery and see why we are the best electrocardiogram app on the market! Whether you are a paramedic, nurse, clinician, or medical student, ECG Mastery simplifies the learning process and helps you interpret ECGs with confidence. Why choose ECG Mastery: Created by the makers of top-selling NCLEX Mastery, FNP Mastery, and ACLS Mastery apps, ECG Mastery offers a streamlined, efficient way to learn ECG interpretation. Whether you are a paramedic, nurse, clinician, or medical student, our app helps you approach every EKG monitor line with confidence and understanding. • Master ECG interpretation: Comprehensive guides and tips. • No More Big Books: All essential information in one app. • Lead Placement Diagrams: Axis interpretation and more. • Dozens of 12 Lead ECGs: Only learn what’s clinically relevant and safely ignore the rest. • Practice Tools: Interpret typical and uncommon heart rhythms on EKG strips. Save time, energy, and money by avoiding complicated textbooks and expensive on-site courses. Study where and when you want, and only learn what’s necessary for your clinical practice. Download ECG Mastery today and see why we are the best electrocardiogram app on the market! Subscribe and get access to all content: • 1 Month: $11.99 each month • 3 Months: $29.99 every three months • 12 Months: $74.99 each year Upon confirming your purchase, you'll be billed immediately. Your subscription will automatically renew unless you turn off the auto-renewal feature at least 24 hours before the end of the current subscription period. After purchase, you can manage your subscription and deactivate auto-renewal through your Account Settings. Note that any unused portion of a free trial, if offered, will be forfeited when you buy a subscription. Privacy Policy - http://builtbyhlt.com/privacy Terms of Conditions - http://builtbyhlt.com/EULA Customer Support: Your success matters to us. Talk to a real person at support@hltcorp.com or (319) 246-5271.

About

AHA ACLS

This app provides clinicians with a digital tool to assist in running cardiac arrest codes and delivering advanced cardiac life support (ACLS) at the bedside. It features the latest AHA recommendations and includes intuitive access to algorithms, drug dosing, and timers for efficient patient care.

Highlights
  • 4 ACLS algorithms (cardiac arrest, tachycardia, bradycardia, post-arrest)
  • Latest 2025 AHA ACLS content
  • Drug therapy and dosing
  • Easy-to-read timers
  • CPR and epinephrine logging
  • Rapid transition to post-arrest care
Features
Currently charting
Read full description

The AHA ACLS app is the American Heart Association's (AHA) officially endorsed digital health solution to assist clinicians in running codes and delivering bedside ACLS care with actual patients. The app was developed by Harvard-trained physicians, in collaboration with the AHA, to help fellow physicians, nurses, physician assistants, nurse practitioners, and EMTs deliver the highest level of advanced cardiac life support (ACLS) at the point-of-care. It began as a project to assist clinicians within Massachusetts General Hospital (MGH), a Harvard Medical School teaching hospital—and then expanded to have a global scope after significant positive impact was demonstrated. Importantly, real-time feedback from our clinician users continuously drives improvements in app design, features, and function so that you will have the best experience providing life-saving care at the bedside. The AHA ACLS app is the only one to have all content vetted by both the AHA science team and practicing Harvard-affiliated physicians. It also features the latest 2025 release of AHA recommendations for ACLS. We owe it to our patients to use the best digital health tools to give them the highest chance of surviving acute life-threatening cardiac illnesses. To this end, we have developed a low cost, intuitive, and rigorously vetted mobile app to assist clinicians— including in all stages of training—and enhance ACLS care at the bedside. Features: - Intuitive design to rapidly access 4 ACLS algorithms (i.e. cardiac arrest, tachycardia with pulse, bradycardia with pulse, and post cardiac arrest care) - Includes all recently released 2025 ACLS content including drug therapy and dosing, reversible causes, etc. - Easy-to-read timers and ability to log rounds of CPR, epinephrine, and defibrillations - Button within cardiac arrest algorithm that allows for rapid transition to post cardiac arrest care pathway once patient achieves ROSC - All content rigorously vetted by AHA science team and practicing Harvard-affiliated physicians We continue to iterate based on real-time clinician feedback, so that you will have the best experience providing life-saving care at the bedside. AHA ACLS offers an auto-renewing annual subscription at $3.99/year with a 3-day free trial. You will have unlimited access to all content while you maintain an active subscription. Payment will be charged to the credit card connected to your Apple ID Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of the free trial period, if offered, will be forfeited when you purchase a subscription. You can read more about our terms and conditions in the app.

Screenshots

ECG EKG Interpretation Mastery4 screens
AHA ACLS4 screens

Verdict

The call

The clearest difference is rating: AHA ACLS at 4.9 against ECG EKG Interpretation Mastery's 4.5. ECG EKG Interpretation Mastery's advantage is update cadence (every 3 weeks vs every 2 months). On price, review sentiment, ratings volume and ads 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. ECG EKG Interpretation Mastery sells 3 in-app purchases, starting at $9.99 per month and AHA ACLS sells 1 in-app purchase, starting at $3.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

AHA ACLS holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 720 and 391 respectively. Written reviews point the same way: 25% of ECG EKG Interpretation Mastery's written reviews are positive against 26% of AHA ACLS's.

UpkeepUpdate frequency

ECG EKG Interpretation Mastery ships an update every 3 weeks, AHA ACLS every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 9 level
ECG EKG Interpretation Mastery versus AHA ACLS: the parameters behind the verdict, then further details
ParameterECG EKG Interpretation MasteryAHA ACLS
PriceFreeFree
Rating4.5 (720 ratings)4.9 (391 ratings) — better
Positive reviews25.0% of reviews26.3% of reviews — better
Number of ratings720 — better391
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionSubscription
Best chart rank#107#58 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size132 MB48 MB
Age rating12+17+
DeveloperHigher Learning TechnologiesMassachusetts General Hospital

Customer experience

ECG EKG Interpretation Mastery

All ratings712 ratings
Positive86.1%
Neutral4.4%
Negative9.6%
Written reviews28 reviews
Positive25.0%
Neutral3.6%
Negative71.4%

AHA ACLS

All ratings277 ratings
Positive99.3%
Neutral0.4%
Negative0.4%
Written reviews80 reviews
Positive26.3%
Neutral3.8%
Negative70.0%

User reviews

ECG EKG Interpretation Mastery

From 720 App Store ratings

What we love

  • 📚 Simple, easy-to-understand format
  • 🎨 Nice graphics and visual presentation
  • 📖 Good reference material for EKG basics
  • ✅ Comprehensive coverage from basics to advanced levels

Room to improve

  • 💰 Expensive subscription model ($9.99-$20/month)
  • 🔒 Invasive privacy policy collecting personal data
  • ⚠️ Automatic charging after free trial without clear warning
  • 📝 Limited content - only ~20 note cards
  • ❌ Lacks depth and in-depth explanations

AHA ACLS

From 391 App Store ratings

What we love

  • ✅ Accurate, up-to-date AHA ACLS algorithms
  • ⏱️ Built-in timers and counters for code management
  • 👍 User-friendly, intuitive interface
  • 🏥 Trusted by Harvard/MGH and American Heart Association
  • 📋 Helpful for documentation and PCR completion

Room to improve

  • 💰 Subscription paywall on previously free app
  • 🚨 Dangerous surprise paywall during active codes
  • ⚠️ No warning before transition to paid model
  • 🔐 Requires payment even for basic ACLS information
  • 😤 Perceived greed from wealthy organizations (MGH/AHA)

Bugs and requests

ECG EKG Interpretation Mastery

Reported bugs

5 issues
  • Quiz feature is broken or inaccessible
  • Practice questions advertised but cannot be accessed
  • Screen not compatible with iPhone X
  • App requires email or Facebook login to use
  • Paywall prevents access to advertised content

Requested features

9 requests
  • Comprehensive practice questions with explanations
  • Actual video lessons or detailed tutorials
  • Random 12-lead EKG quiz functionality
  • Daily tasks and practice questions
  • More extensive examples and case studies
Show 4 more
  • Coverage of rare conditions (e.g., Brugada syndrome)
  • One-time purchase option instead of subscription
  • Better organization and presentation (not Word-style)
  • Apple Watch compatibility

AHA ACLS

Reported bugs

3 issues
  • App fails to load information despite subscription payment
  • Users locked out of app mid-code
  • Unexpected app crashes during critical moments

Requested features

10 requests
  • Multiple log storage with dates
  • More detailed code logging with event documentation (IO access, medications, rhythms)
  • End code button and pause compressions feature
  • Real-time log tracking for back-charting
  • LVAD algorithm inclusion
Show 5 more
  • Additional medication counters (bicarbonate, calcium)
  • One-time purchase option instead of subscription
  • Free basic version with premium features behind paywall
  • Voluntary donation model instead of mandatory subscription
  • Actual time reflection in logs for accurate timekeeping

In-app purchases

3 purchases

ECG EKG Interpretation Mastery

Subscriptions3
  • ECG EKG Mastery - 1 Month3 Days trial$9.991 Month
  • ECG EKG Mastery - 3 Months3 Days trial$29.993 Months
  • ECG EKG Mastery - 12 Months3 Days trial$74.991 Year
1 purchases

AHA ACLS

Subscriptions1
  • ACLS Pro3 Days trial$3.991 Year

Questions

Is ECG EKG Interpretation Mastery free?
ECG EKG Interpretation Mastery is free to download, with in-app purchases available.
Is AHA ACLS free?
AHA ACLS is free to download, with in-app purchases available.
Which has better reviews, ECG EKG Interpretation Mastery or AHA ACLS?
AHA ACLS is rated higher. ECG EKG Interpretation Mastery averages 4.5 out of 5 from 720 ratings, while AHA ACLS averages 4.9 from 391 ratings.
Do ECG EKG Interpretation Mastery or AHA ACLS have ads?
Neither ECG EKG Interpretation Mastery nor AHA ACLS shows ads.
Which is updated more often, ECG EKG Interpretation Mastery or AHA ACLS?
ECG EKG Interpretation Mastery ships an update every 3 weeks, and AHA ACLS every 2 months. Most recently, ECG EKG Interpretation Mastery was updated on November 6, 2026 and AHA ACLS on November 7, 2026.
Which is more popular, ECG EKG Interpretation Mastery or AHA ACLS?
ECG EKG Interpretation Mastery currently peaks at #107 in the App Store charts, and AHA ACLS at #58. Chart position reflects recent download velocity rather than total install base.

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