Comparison

ECG EKG Interpretation Mastery vs Code Companion

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
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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

Code Companion

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
Currently charting
Read full description

Includes Code tracking PVT/VT algorithm PEA algorithm Tachy algorithm Brady algorithm ROSC Med Calc Epi Drip Levophen drip Weight Conversion Ad Free Overview: Code Companion is the ultimate cardiac arrest phone application designed by EMS professionals, for EMS professionals. This powerful tool is your quick reference field guide, revolutionizing the way you care for cardiac arrest patients. With its user-friendly interface, real-time tracking capabilities, and comprehensive resources, Code Tracker is your partner in delivering critical care efficiently and effectively. Key Features: -Color-Coded Information: Code Companion employs an intuitive color-coded system, allowing you to swiftly identify and prioritize crucial information during a cardiac arrest response. Whether it's assessing rhythm, administering medications, or following ACLS algorithms, our app simplifies complex data into easy-to-digest visuals. -Real-Time Tracking: Stay on top of every critical procedure with our real-time tracking feature. Code Tracker ensures you never miss a beat, tracking your progress through cardiac arrest protocols and providing live updates as you go. -Comprehensive Reference Materials: We've meticulously curated the latest protocols from around the country and integrated them into a single, easy-to-navigate resource. Code Tracker ensures that you have the most up-to-date information at your fingertips, specifically tailored for the prehospital EMS setting. -Medication Administration Guidance: Easily access medication dosages and administration guidelines, eliminating the need to fumble through reference books or manuals during high-stress situations. Code Tracker ensures you administer the right medications at the right time. -ACLS Algorithms: Our app offers a quick reference for ACLS (Advanced Cardiovascular Life Support) algorithms, empowering you to make critical decisions swiftly and confidently during cardiac arrest events. No Subscriptions: Code Companion is here to support you, not burden you with subscriptions . It's always ad-free and readily available for immediate use. Sharing is Caring: If you find Code Tracker invaluable, share it with fellow providers who could benefit from its capabilities. Together, we can enhance cardiac arrest care across the EMS community. Why Code Tracker? Stop relying on memory or outdated resources during cardiac arrest responses. With Code Companion, you have a dedicated, reliable companion that ensures you provide the best care possible. Why do mental math when you can have life-saving information at your fingertips? Code Companion: For EMS, By EMS. Your essential tool for saving lives. Download it today and be prepared for This is not a replacement for protocols alway consult medical control

Screenshots

ECG EKG Interpretation Mastery4 screens
Code Companion3 screens

Verdict

The call

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.

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

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

ECG EKG Interpretation Mastery ships an update every 3 weeks, Code Companion every 5 weeks. The most recent releases landed on September 21, 2026 and August 27, 2026 respectively.

Scorecard5 real differences · 6 level
ECG EKG Interpretation Mastery versus Code Companion: the parameters behind the verdict, then further details
ParameterECG EKG Interpretation MasteryCode Companion
PriceFree — better$2.99
Rating4.5 (712 ratings)5.0 (1 ratings) — better
Positive reviews25.0% of reviews—
Number of ratings712 — better1
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionPaid — better
Best chart rank#174 — better#193
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size132 MB72 MB
Age rating12+12+
DeveloperHigher Learning TechnologiesNational Emergency Resource Group

Customer experience

ECG EKG Interpretation Mastery

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

Code Companion

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

Code Companion

Not enough reviews yet to summarise bugs or requests.

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
None

Code Companion

No in-app purchases

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 21, 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 #174 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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