Comparison

Lanthier vs The Calgary Guide

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lanthier

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
Read full description

“Lanthier” is an internal medicine app based on the seventh edition of the bestselling pocketbook. Completely re-imagined for iOS, this app will allow any physician, resident or medical student to access up-to-date medical information and guidelines quickly and efficiently. Free 7 days trial subscription! “Lanthier Practical Guide to Internal Medicine is a good choice for an app to replace your pocketbook. Beyond providing quality content with references, it has an excellent design that makes it more than just a digitized version of a book. Finding clinically relevant information about a condition is quick and easy.” iMedicalApp.com — FEATURES — • Concise: edited to be useful at the bedside. • Fast: advanced search function, intuitive menus. • Direct link to the references on PubMed and now through Read by QxMD (internet connection required). Build your paper collection using articles selected by Dr Lanthier himself. • MedCalX integration (sold separately): for quick access to the trusted medical calculator. • Take personal notes within the topics and synchronize them across your iOS devices. Perfect for studying for board exams! — TOPICS — Cardiology Dermatology (new) Endocrinology Gastroenterology General Internal Medicine Hematology Infectious Diseases Nephrology Neurology Oncology Pneumology Rheumatology — ABOUT THE LEAD AUTHORS — Dr Luc Lanthier practices General Internal Medicine at the Sherbrooke University Hospital Center and is a Professor of Medicine at the Faculty of Medicine and Health Sciences of the University of Sherbrooke. He is former chair of the French Examination Board for Internal Medicine Exam at the Royal College of Physicians and Surgeons of Canada. Dr Donald Echenberg practices General Internal Medicine at the Sherbrooke University Hospital Center and is an Associate Professor of Medicine at the Faculty of Medicine and Health Sciences of the University of Sherbrooke. He is past president of the Canadian Society of Internal Medicine and is currently Governor of the Quebec Chapter of the American College of Physicians. — DISCLAIMER — This publication (application) is to be used as a guide only. It is intended only for use by licensed medical practitioners and medical students. Every doctor (or prescriber) is responsible for their actions. Therapeutic options presented in this guide reflect current approaches and guidelines in the field of internal medicine. Content has been peer reviewed by leading experts in their respective fields. The authors of Lanthier - Practical Guide to Internal Medicine shall not be liable for any injury and/or damage to persons or property arising from the use of this application. This guide is not meant to replace clinical judgment. It is the responsibility of the licensed prescriber to verify the indications, contraindications and dosage of the medication (and actions) they prescribe. — ABOUT SUBSCRIPTION — Lanthier - Internal Medicine is offered as a subscription service, renewed automatically. Payment will be charged to iTunes Account at confirmation of purchase. The subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. The iTunes Account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the application «Settings» section and tapping «Manage Subscriptions» after purchase. For more information on Terms of Use visit https://lanthiermed.com/terms-of-use

About

The Calgary Guide

This medical learning tool from the University of Calgary allows offline access to educational content. A built-in search function helps users quickly find specific slides for convenient study anywhere.

Highlights
  • Offline content access
  • Search function
  • Medical learning tool
  • University of Calgary developed
Features
Read full description

The Calgary Guide is an internationally-respected medical learning tool created at the University of Calgary. The mobile application lets you download the content to your device and use it anywhere, offline. A search function makes it easier to find the slide that you're looking for.

Screenshots

Lanthier4 screens
The Calgary Guide4 screens

Verdict

The call

The clearest difference is rating: The Calgary Guide at 4.4 against Lanthier's 3.8. The Calgary Guide also leads on in-app purchases (none vs 2) and iOS requirement (11.0 vs 16.0). On price, review sentiment, ratings volume and update cadence 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

Both are free to download. Lanthier sells 2 in-app purchases, starting at $19.49 per year. The Calgary Guide asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

The Calgary Guide holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 5 and 8 respectively. Written reviews point the same way: 62% of Lanthier's written reviews are positive against 67% of The Calgary Guide's.

UpkeepUpdate frequency

Lanthier ships an update every 2 months, The Calgary Guide every 4 months. The most recent releases landed on September 28, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 6 level
Lanthier versus The Calgary Guide: the parameters behind the verdict, then further details
ParameterLanthierThe Calgary Guide
PriceFreeFree
Rating3.8 (5 ratings)4.4 (8 ratings) — better
Positive reviews61.9% of reviews66.7% of reviews — better
Number of ratings58 — better
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.011.0 — better
Further details — not scored
Size70 MB29 MB
Age rating17+17+
DeveloperLes Éditions Formed inc.David Olmstead

Customer experience

Lanthier

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews21 reviews
Positive61.9%
Neutral9.5%
Negative28.6%

The Calgary Guide

All ratings8 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews6 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

In-app purchases

2 purchases

Lanthier

Subscriptions2
  • Lanthier - current users3 Months trial$19.491 Year
  • Lanthier - new users7 Days trial$19.491 Year
None

The Calgary Guide

No in-app purchases

Questions

Is Lanthier free?
Lanthier is free to download, with in-app purchases available.
Is The Calgary Guide free?
The Calgary Guide is free to download, with no in-app purchases.
Which has better reviews, Lanthier or The Calgary Guide?
The Calgary Guide is rated higher. Lanthier averages 3.8 out of 5 from 5 ratings, while The Calgary Guide averages 4.4 from 8 ratings.
Do Lanthier or The Calgary Guide have ads?
Neither Lanthier nor The Calgary Guide shows ads.
Which is updated more often, Lanthier or The Calgary Guide?
Lanthier ships an update every 2 months, and The Calgary Guide every 4 months. Most recently, Lanthier was updated on September 28, 2026 and The Calgary Guide on September 10, 2026.

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