# Lanthier — Internal Medicine > Internal medicine reference guide for medical professionals and students. (iPhone/iPad app by Les Éditions Formed inc..) - Source: https://appshunter.io/ios/app/lanthier/id701664895 (this page in markdown: same URL + `.md`) - Developer: [Les Éditions Formed inc.](https://appshunter.io/developer/442932971) - Category: Medical - Price: Free with in-app purchases - Rating: 3.80/5 from 5 App Store ratings · 21 written reviews indexed - Age rating: 17+ - Requires: iOS 16.0 · 70 MB - Languages: American English, French (France) - Released: 2013-09-26 - Data updated: 2026-08-28 - Monetization: subscription - User reviews in markdown: https://appshunter.io/ios/app/lanthier/id701664895/reviews.md ## What is Lanthier? “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 ## Key features - Concise bedside information - Advanced search function - Intuitive menus - Direct links to PubMed - Personal note-taking - Cross-device synchronization ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Lanthier - current users | $19.49 | per year | | Lanthier - new users | $19.49 | per year | ## Recent user reviews (10 of 21) All indexed reviews: https://appshunter.io/ios/app/lanthier/id701664895/reviews.md ### 4/5 — Good content, format could be better *2023-07-01* The topics have huge blocks of text. No bolding or subheadings makes it harder to navigate within a topic. Would be nicer if everything was in easier to access format or lists (especially for differentials). Content is great and nice integration with calculator. ### 1/5 — Cannot access *2023-02-22* Everything is for purchase,, I prefer medscape ### 5/5 — Updated review.. *2022-09-24* I had initially written a review regarding the pricing increase. I was wrong, the price has not changed! In terms of the content, it is great, very organized and up to date. **Developer response:** Hi; The subscription has always been $25/year. We are not in the business of deceiving our clients. As a side note, Apple would never let a developer raise the price of a subscription without the client's consent. ### 1/5 — Ne fonctionne plus depuis la mise à jour *2022-03-24* Depuis la dernière mise à jour je ne suis plus capable du tout d’avoir accès à l’application. C’est décevant. **Developer response:** Bonjour, SVP utilisez l'onglet "Nous envoyer un courriel" pour que je puisse vous assister. Assurez-vous également d'avoir la plus récente mise à jour de l'application. ### 1/5 — Impossible de reprendre abonnement *2021-07-07* J ai déjà utilisé cet appli ds la passé , je suis incapable de m abonner de nouveau. Le systeme refuse mon email qui n a pas changé. Impossible d ouvir un accompte mon email est refusé. On ne me donne pas de nouveau password???? ### 1/5 — Scam *2021-03-03* I’ve bought this app as a one time fee to have this book on my phone few years back and now I can’t access it until I pay the annual subscription?? I’ve bought the book, I don’t care about the updates, I should be able to access it without any subscription. **Developer response:** If you purchased the book prior to the subscription format, you can regain access to that book by using the "Restore Purchase" button. If it doesn't work, please send us a support email using the tab in the app. ### 5/5 — Highly recommend *2020-12-17* Truly excellent and underrated app probably because it was made in Quebec. But I highly recommend this as a IM senior resident. Better than up to date more concise and uses Canadian guidelines. 10/10 ### 5/5 — Application très complète *2020-01-24* Travail incroyable et application très pratique pour les internistes ### 3/5 — Certains segments ne fonctionnent pas *2019-01-08* Je l’utilisais beaucoup mais depuis la mise à jour certains dossiers comme l’hypothyroïdie ne fonctionne plus et il manque de description pour les traitements Mais application somme toute correcte **Developer response:** Merci pour le commentaire; nous allons régler ce problème dans l'ancienne édition lors de la prochaine mise à jour. Pour les utilisateurs de la nouvelle édition il ne devrait pas y avoir de problème. Pour la description des traitements, je transfert le commentaire au Dr Lanthier. ### 1/5 — Mise à jour qui efface l’ancienne version!!!! *2018-07-02* Attention!!!🤬🤬🤬😈😈👹⚡️⚡️⚡️ La mise à jour empêche la récupération de la version antérieure achetée .?!!!?? Ce qui Oblige à l’abonnement si on veut utiliser Je souhaite que les développeurs tiennent compte que la version antérieure. Achetée est propriété de l’acheteur ( 34€). Et qu’il laisse le choix aux acheteurs anciens de continuer à utiliser la version antérieure Ce qui est dans les habitudes de apples store (application achetée est permanente et non pas temporaire J’aurai donné 5 si les développeurs laissent le choix à l’utilisateur ## Frequently asked questions about Lanthier ### What is Lanthier? Lanthier is an internal medicine app based on a bestselling pocketbook, designed for physicians, residents, and medical students. It provides quick access to up-to-date medical information and guidelines. ### What topics are covered in Lanthier? Lanthier covers a wide range of internal medicine topics including Cardiology, Dermatology, Endocrinology, Gastroenterology, General Internal Medicine, Hematology, Infectious Diseases, Nephrology, Neurology, Oncology, Pneumology, and Rheumatology. ### How much does Lanthier cost? Lanthier is offered as a subscription service. New users can get a 7-day free trial, and current users have a 3-month free trial. The subscription price is $19.49 per year. ### Is Lanthier available on Android? Based on the provided data, Lanthier is designed for iOS devices, specifically iPhone and iPad. Information regarding Android availability is not present. ### How often is Lanthier updated? The app's latest version is 4.1.5, last updated on March 28, 2026. This indicates a commitment to keeping the content current, though specific update frequency is not detailed. ### Can I take notes in Lanthier? Yes, Lanthier allows you to take personal notes within the topics and synchronize them across your iOS devices. This feature is particularly useful for studying for board exams. ### Does Lanthier have ads? No, Lanthier does not contain advertisements. The application is ad-free, focusing on providing an uninterrupted user experience for medical professionals. ### What is the age rating for Lanthier? Lanthier has an age rating of 17+. This is appropriate for its intended audience of licensed medical practitioners and medical students. ## Version history (last 5 releases) ### 4.1.5 — 2026-03-28 Fixes and improvements ### 4.1.4 — 2026-01-13 Fixes and improvements ### 4.1.3 — 2025-12-19 Fixes and improvements ### 4.1.2 — 2025-11-25 Fixes and improvements ### 4.1.1 — 2025-11-18 Localization fixes ## Apps similar to Lanthier | App | Rating | Price | Category | | --- | --- | --- | --- | | [SPIRO](https://appshunter.io/ios/app/spiro/id1135982423) | — | $3.99 | Medical | | [Thrombosis](https://appshunter.io/ios/app/thrombosis/id728181432) | 4.0 (3) | Free | Medical | | [MD on Call](https://appshunter.io/ios/app/md-on-call/id333195169) | 5.0 (1) | $9.99 | Medical | | [The Perinatal Memo](https://appshunter.io/ios/app/the-perinatal-memo/id1551840935) | 4.7 (22) | $39.99 | Medical | | [INESSS](https://appshunter.io/ios/app/inesss/id1206046869) | — | Free | Medical | | [Antibiothérapie Pédiatrique](https://appshunter.io/ios/app/antibiotherapie-pediatrique/id1302793888) | — | Free | Medical | ## More apps by Les Éditions Formed inc. - [Infectio](https://appshunter.io/ios/app/infectio/id983285577) All apps by Les Éditions Formed inc.: https://appshunter.io/developer/442932971 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*