# ACLS Fast vs ECG EKG Interpretation Mastery

The clearest difference is review sentiment: ACLS Fast at 76% against ECG EKG Interpretation Mastery's 25%. ACLS Fast also leads on in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). ECG EKG Interpretation Mastery's advantage is price (Free vs $3.99) and rating (4.5 vs 2.8). On ads and device support there is nothing between them.

ECG EKG Interpretation Mastery is free to download; ACLS Fast costs $3.99 up front. ECG EKG Interpretation Mastery sells 3 in-app purchases, starting at $9.99 per month. ACLS Fast asks for nothing beyond the download.

ECG EKG Interpretation Mastery holds the better App Store score, 4.5 against 2.8. That said, the two scores are not equally well evidenced: ECG EKG Interpretation Mastery has 717 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 76% of ACLS Fast's written reviews are positive against 25% of ECG EKG Interpretation Mastery's, so the app with the better star average is not the one people write more warmly about.

ACLS Fast ships an update every 3 months, ECG EKG Interpretation Mastery every 3 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | ACLS Fast | ECG EKG Interpretation Mastery |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/acls-fast/id654570275/reviews) | **[4.5 (717 ratings)](https://appshunter.io/ios/app/ecg-ekg-interpretation-mastery/id1143682180/reviews)** |
| Number of ratings | 4 | **717** |
| Positive reviews | **75.8% of reviews** | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Subscription |
| Best chart rank | — | **#166** |
| Size | 20 MB | 132 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Crystal Clear Solutions](https://appshunter.io/developer/444062170) | [Higher Learning Technologies](https://appshunter.io/developer/571804544) |

## What reviewers say

### ACLS Fast

[App page](https://appshunter.io/ios/app/acls-fast/id654570275)

This app provides rapid guidance for ACLS 2020 guidelines, helping users quickly determine appropriate therapies through a question-based system. It includes information on rhythms, arrhythmias, acute coronary and stroke syndromes, and features a two-minute timer for code management.

**Highlights:** Question-based therapy guidance, Rhythms and arrhythmias management, Acute coronary and stroke syndrome protocols, Two-minute code timer with alarm, Interactive multiple-choice exams, Rapid diagnosis and treatment support

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

**In-app purchases:** none


### ECG EKG Interpretation Mastery

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

**Currently charting:** #166 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


## Frequently asked questions

### Is ACLS Fast free?

ACLS Fast costs $3.99, with no in-app purchases.

### Is ECG EKG Interpretation Mastery free?

ECG EKG Interpretation Mastery is free to download, with in-app purchases available.

### Which has better reviews, ACLS Fast or ECG EKG Interpretation Mastery?

ECG EKG Interpretation Mastery is rated higher. ACLS Fast averages 2.8 out of 5 from 4 ratings, while ECG EKG Interpretation Mastery averages 4.5 from 717 ratings.

### Do ACLS Fast or ECG EKG Interpretation Mastery have ads?

Neither ACLS Fast nor ECG EKG Interpretation Mastery shows ads.

### Which is updated more often, ACLS Fast or ECG EKG Interpretation Mastery?

ACLS Fast ships an update every 3 months, and ECG EKG Interpretation Mastery every 3 weeks. Most recently, ACLS Fast was updated on November 1, 2026 and ECG EKG Interpretation Mastery on November 2, 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.*