# ECG EKG Interpretation Mastery vs ECG Notes

The clearest difference is monetization model: ECG Notes at free with in-app purchases against ECG EKG Interpretation Mastery's subscription. ECG Notes also leads on review sentiment (50% vs 25%) and rating (4.7 vs 4.5). ECG EKG Interpretation Mastery's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). On price, in-app purchases and device support 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 ECG Notes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ECG Notes holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: ECG EKG Interpretation Mastery has 712 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 25% of ECG EKG Interpretation Mastery's written reviews are positive against 50% of ECG Notes's.

ECG EKG Interpretation Mastery ships an update every 3 weeks, ECG Notes every 3 months. The most recent releases landed on September 25, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | ECG EKG Interpretation Mastery | ECG Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (712 ratings)](https://appshunter.io/ios/app/ecg-ekg-interpretation-mastery/id1143682180/reviews) | **[4.7 (12 ratings)](https://appshunter.io/ios/app/ecg-notes-quick-look-up-ref/id1146393355/reviews)** |
| Number of ratings | **712** | 12 |
| Positive reviews | 25.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Best chart rank | **#88** | — |
| Size | 132 MB | 46 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Higher Learning Technologies](https://appshunter.io/developer/571804544) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## What reviewers say

### ECG EKG Interpretation Mastery

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

**Currently charting:** #88 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


### ECG Notes

[App page](https://appshunter.io/ios/app/ecg-notes-quick-look-up-ref/id1146393355)

This pocket guide offers a quick reference for ECG interpretation and management, covering basics, 12-lead ECGs, ACLS, CPR, and emergency medications. It includes over 100 ECG strips and practice questions, with content updated to the latest guidelines. No internet connection is needed after initial download.

**Highlights:** 125 ECG rhythm strips, Comprehensive coverage: basics, ECG, ACLS, PALS, meds, CPR, CPR algorithms in tabular format, Test Yourself ECG strips with real-life arrhythmias, Clinical Tips and PALS coverage, SmartSearch technology for quick look-up, Offline content access

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG Notes-Ed.4 | $34.99 | one-time |


## Frequently asked questions

### Is ECG EKG Interpretation Mastery free?

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

### Is ECG Notes free?

ECG Notes is free to download, with in-app purchases available.

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

ECG Notes is rated higher. ECG EKG Interpretation Mastery averages 4.5 out of 5 from 712 ratings, while ECG Notes averages 4.7 from 12 ratings.

### Do ECG EKG Interpretation Mastery or ECG Notes have ads?

ECG Notes shows ads; ECG EKG Interpretation Mastery does not.

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

ECG EKG Interpretation Mastery ships an update every 3 weeks, and ECG Notes every 3 months. Most recently, ECG EKG Interpretation Mastery was updated on September 25, 2026 and ECG Notes on August 12, 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.*