# ECG Guide vs Lanthier

The clearest difference is price: Lanthier at Free against ECG Guide's $0.99. ECG Guide's advantage is in-app purchases (none vs 2) and review sentiment (76% vs 62%). On rating, ratings volume, update cadence and ads there is nothing between them.

Lanthier is free to download; ECG Guide costs $0.99 up front. Lanthier sells 2 in-app purchases, starting at $19.49 per year. ECG Guide asks for nothing beyond the download.

Lanthier holds the better App Store score, 3.8 against 3.6. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews complicate that: 76% of ECG Guide's written reviews are positive against 62% of Lanthier's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ECG Guide | Lanthier |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.6 (8 ratings)](https://appshunter.io/ios/app/ecg-guide/id301027070/reviews) | **[3.8 (5 ratings)](https://appshunter.io/ios/app/lanthier/id701664895/reviews)** |
| Number of ratings | **8** | 5 |
| Positive reviews | **75.8% of reviews** | 61.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Paid** | Subscription |
| Best chart rank | **#169** | — |
| Size | 26 MB | 70 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [WebMD](https://appshunter.io/developer/295076332) | [Les Éditions Formed inc.](https://appshunter.io/developer/442932971) |

## 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


### Lanthier

[App page](https://appshunter.io/ios/app/lanthier/id701664895)

Access up-to-date internal medicine information and guidelines quickly and efficiently. This app offers a fast search function, intuitive menus, and direct links to PubMed references. It's designed for physicians, residents, and medical students to use at the bedside.

**Highlights:** Concise bedside information, Advanced search function, Intuitive menus, Direct links to PubMed, Personal note-taking, Cross-device synchronization

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lanthier - current users | $19.49 | per year |
| Lanthier - new users | $19.49 | per year |


## Frequently asked questions

### Is ECG Guide free?

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

### Is Lanthier free?

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

### Which has better reviews, ECG Guide or Lanthier?

Lanthier is rated higher. ECG Guide averages 3.6 out of 5 from 8 ratings, while Lanthier averages 3.8 from 5 ratings.

### Do ECG Guide or Lanthier have ads?

Neither ECG Guide nor Lanthier shows ads.

### Which is updated more often, ECG Guide or Lanthier?

ECG Guide ships an update every 2 months, and Lanthier every 2 months. Most recently, ECG Guide was updated on September 22, 2026 and Lanthier on September 10, 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.*