# ECG Guide vs MD on Call

The clearest difference is rating: MD on Call at 5.0 against ECG Guide's 3.6. ECG Guide's advantage is price ($0.99 vs $9.99) and update cadence (every 2 months vs every 4 months). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

ECG Guide costs $0.99 and MD on Call $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MD on Call holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: ECG Guide has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of ECG Guide's written reviews are positive against 78% of MD on Call's.

ECG Guide ships an update every 2 months, MD on Call every 4 months. Both last shipped on September 22, 2026.

## The numbers

| Metric | ECG Guide | MD on Call |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | [3.6 (8 ratings)](https://appshunter.io/ios/app/ecg-guide/id301027070/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/md-on-call/id333195169/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 75.8% of reviews | **78.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | Paid |
| Best chart rank | **#169** | #177 |
| Size | 26 MB | 17 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [WebMD](https://appshunter.io/developer/295076332) | [Messil inc.](https://appshunter.io/developer/333195172) |

## What reviewers say

### ECG Guide

[App page](https://appshunter.io/ios/app/ecg-guide/id301027070)

**Currently charting:** #169 Top Paid · Medical (US App Store)

This comprehensive reference app provides over 200 high-quality ECG examples and in-depth explanations for medical professionals and students. It offers stepwise interpretation assistance, a large library of common and complex findings, and quiz questions to test knowledge.

**Highlights:** Over 200 high-resolution sample ECGs, In-depth reference text on ECG interpretation, Stepwise ECG Interpreter assistance, Over 100 multiple-choice quiz questions, Rapid Reference section for quick interpretation, Clear descriptions of arrhythmias and findings, Pediatric values included

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

**In-app purchases:** none

**What reviewers like**

- 📚 Comprehensive ECG reference material and content
- 👍 Excellent for medical professionals (doctors, nurses, paramedics, residents)
- 🎯 Well-organized and easy-to-navigate interface
- 📊 Large library of high-quality sample ECG strips
- 🧠 Helpful quiz feature for testing knowledge

**What reviewers complain about**

- ❌ Not suitable for general public/non-medical users
- 🎨 Outdated UI design and appearance
- 📱 Poor iPad compatibility
- 🔐 Requires email registration after purchase
- 💸 Separate purchase required for iPad version

**Reported bugs**

- App crashes at startup
- Incompatible with iOS 4 (fixed in later updates)
- Incompatible with iOS 11 (64-bit update needed)
- UI appears blown-up and blurry on iPhone 6+
- Cannot exit ECG view when rotated sideways

**Requested features**

- iPad support and optimization
- Highlight or circle abnormalities on ECG images
- Search functionality for finding specific content
- Customizable quiz difficulty levels
- ACLS algorithms integration


### MD on Call

[App page](https://appshunter.io/ios/app/md-on-call/id333195169)

**Currently charting:** #177 Top Paid · Medical (US App Store)

This app provides quick, practical guidance for physicians, residents, and medical students to manage common on-call issues. It offers concise tips for acute assessment and management, helping users efficiently address patient problems without needing to consult lengthy textbooks.

**Highlights:** Quick assessment and management tips, Covers 26 frequent on-call situations, Management of common electrolyte abnormalities, ECG interpretation with examples, Guidance on writing medical orders, Searchable by acronyms and keywords

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Handy checklist for on-duty
- 👍 Useful in ER
- 👍 Great app design
- 👍 Packed with useful info
- 👍 Pragmatic content

**What reviewers complain about**

- 👎 Could cover more content
- 👎 Needs update for iPhone X
- 👎 Content and references outdated
- 👎 Needs a refresh
- 👎 More conditions could be added

**Reported bugs**

- Incompatible with iPhone X
- Incorrect advice regarding Metaclopramide
- Incorrect TDF to morphine conversion data

**Requested features**

- Cover more content
- Update for iPhone X compatibility
- Revise content and references for up-to-date information
- Add more conditions
- Include common diseases and treatments


## Frequently asked questions

### Is ECG Guide free?

ECG Guide costs $0.99, with no in-app purchases.

### Is MD on Call free?

MD on Call costs $9.99, with no in-app purchases.

### Which has better reviews, ECG Guide or MD on Call?

MD on Call is rated higher. ECG Guide averages 3.6 out of 5 from 8 ratings, while MD on Call averages 5.0 from 1 ratings.

### Do ECG Guide or MD on Call have ads?

Neither ECG Guide nor MD on Call shows ads.

### Which is updated more often, ECG Guide or MD on Call?

ECG Guide ships an update every 2 months, and MD on Call every 4 months. Most recently, ECG Guide was updated on September 22, 2026 and MD on Call on September 22, 2026.

### Which is more popular, ECG Guide or MD on Call?

ECG Guide currently peaks at #169 in the App Store charts, and MD on Call at #177. 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.*