# ECG EKG Interpretation Mastery vs Code Companion

The clearest difference is price: ECG EKG Interpretation Mastery at Free against Code Companion's $2.99. ECG EKG Interpretation Mastery also leads on ratings volume (712 vs 1). Code Companion's advantage is rating (5.0 vs 4.5) and in-app purchases (none vs 3). On update cadence, ads, chart position and device support there is nothing between them.

ECG EKG Interpretation Mastery is free to download; Code Companion costs $2.99 up front. ECG EKG Interpretation Mastery sells 3 in-app purchases, starting at $9.99 per month. Code Companion asks for nothing beyond the download.

Code Companion holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: ECG EKG Interpretation Mastery has 712 ratings behind it against 1, so its average is the more settled of the two.

ECG EKG Interpretation Mastery ships an update every 3 weeks, Code Companion every 5 weeks. The most recent releases landed on September 25, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | ECG EKG Interpretation Mastery | Code Companion |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.5 (712 ratings)](https://appshunter.io/ios/app/ecg-ekg-interpretation-mastery/id1143682180/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/code-companion/id1660394885/reviews)** |
| Number of ratings | **712** | 1 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Subscription | **Paid** |
| Best chart rank | **#163** | #193 |
| Size | 132 MB | 72 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Higher Learning Technologies](https://appshunter.io/developer/571804544) | [National Emergency Resource Group](https://appshunter.io/developer/1383458744) |

## What reviewers say

### ECG EKG Interpretation Mastery

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

**Currently charting:** #163 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


### Code Companion

[App page](https://appshunter.io/ios/app/code-companion/id1660394885)

**Currently charting:** #193 Top Paid · Medical (US App Store)

This medical reference app provides EMS professionals with quick access to cardiac arrest protocols, algorithms, and medication guidance. It features color-coded information and real-time tracking to streamline critical care during emergencies. Designed by professionals for professionals, it aims to enhance patient care efficiency.

**Highlights:** Cardiac arrest algorithms, Medication administration guidance, Real-time tracking, Color-coded information, Weight conversion, Medical calculations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECG EKG Interpretation Mastery free?

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

### Is Code Companion free?

Code Companion costs $2.99, with no in-app purchases.

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

Code Companion is rated higher. ECG EKG Interpretation Mastery averages 4.5 out of 5 from 712 ratings, while Code Companion averages 5.0 from 1 ratings.

### Do ECG EKG Interpretation Mastery or Code Companion have ads?

Neither ECG EKG Interpretation Mastery nor Code Companion shows ads.

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

ECG EKG Interpretation Mastery ships an update every 3 weeks, and Code Companion every 5 weeks. Most recently, ECG EKG Interpretation Mastery was updated on September 25, 2026 and Code Companion on August 27, 2026.

### Which is more popular, ECG EKG Interpretation Mastery or Code Companion?

ECG EKG Interpretation Mastery currently peaks at #163 in the App Store charts, and Code Companion at #193. 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.*