# ECG EKG Interpretation Mastery vs AHA ACLS

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.

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.

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.

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.

## The numbers

| Metric | ECG EKG Interpretation Mastery | AHA ACLS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (720 ratings)](https://appshunter.io/ios/app/ecg-ekg-interpretation-mastery/id1143682180/reviews) | **[4.9 (391 ratings)](https://appshunter.io/ios/app/aha-acls/id1506944443/reviews)** |
| Number of ratings | **720** | 391 |
| Positive reviews | 25.0% of reviews | **26.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Subscription | Subscription |
| Best chart rank | #131 | **#48** |
| Size | 132 MB | 48 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Higher Learning Technologies, Inc.](https://appshunter.io/developer/571804544) | [Massachusetts General Hospital](https://appshunter.io/developer/376928206) |

## What reviewers say

### ECG EKG Interpretation Mastery

[App page](https://appshunter.io/ios/app/ecg-ekg-interpretation-mastery/id1143682180)

**Currently charting:** #131 Top Grossing · Medical (US App Store)

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:** Apple Wallet, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG EKG Mastery - 1 Month | $9.99 | per month |
| ECG EKG Mastery - 3 Months | $29.99 | per 3 months |
| ECG EKG Mastery - 12 Months | $74.99 | per year |

**What reviewers like**

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

**What reviewers complain about**

- 💰 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

**Reported bugs**

- 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**

- 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


### AHA ACLS

[App page](https://appshunter.io/ios/app/aha-acls/id1506944443)

**Currently charting:** #48 Top Grossing · Medical (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ACLS Pro | $3.99 | per year |

**What reviewers like**

- ✅ 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

**What reviewers complain about**

- 💰 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)

**Reported bugs**

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

**Requested features**

- 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


## Frequently asked 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 #131 in the App Store charts, and AHA ACLS at #48. Chart position reflects recent download velocity rather than total install base.

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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.*