Comparison

Guide Rx Critiques vs Lanthier

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

Head to head
About

Guide Rx Critiques

This app provides a practical reference for healthcare professionals administering critical intravenous medications. It includes information on classification, action, indications, dosages, stability, and compatibility for approximately sixty commonly used drugs in critical care. A free version offers reduced content, with a full subscription unlocking all features and updates.

Highlights
  • Critical care medication reference
  • Drug classification and action
  • Dosage and presentation information
  • Stability and compatibility data
  • Perfusion tables
  • Full guide subscription
Features
Read full description

L'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ) est un établissement suprarégional dont le bassin de desserte de la clientèle s'élève à plus de 2 millions d'habitants, soit environ 30 % de la population du Québec. L'IUCPQ offre des soins et des services spécialisés et ultraspécialisés en cardiologie, en pneumologie et en chirurgie de l'obésité. Affilié à l'Université Laval, l'Institut compte sur la collaboration et le dévouement de près de 3000 employés, médecins, professionnels, chercheurs, gestionnaires et bénévoles pour offrir des soins et des services de qualité aux clientèles hospitalisées et ambulatoires. L'établissement possède un ratio de lits de soins intensifs et progressifs parmi les plus élevés au Québec. Le centre de recherche de l'Institut est reconnu mondialement. L'institut se compare avantageusement aux plus grands établissements nords-américains de soins ultraspécialisés. Le Guide d’administration intraveineuse des médicaments critiques se veut un ouvrage de référence pratique et facile à consulter pour les médecins, pharmaciens, infirmières et infirmiers qui sont impliqués dans l’administration intraveineuse des médicaments critiques. Le guide comprend une soixantaine de médicaments parmi les plus utilisés en soins critiques. Chaque fiche de médicament fourni de l'information sur la classification, le mécanisme d'action, le profil d'action, les indications, les posologies, les présentations disponibles à l'IUCPQ, les données de stabilité et de compatibilité et les précautions, en plus de tableaux de perfusion pour plusieurs médicaments. L'utilisateur doit toutefois prendre en considération que le guide a d'abord été créé par et pour les professionnels de la santé de l'IUCPQ avec les particularités propres à ce milieu ultraspécialisé. L'utilisation du guide doit faire l'objet d'adaptations en fonction du milieu. L'application est gratuite à télécharger. La version gratuite contient une version réduite du guide. Pour obtenir la version complète du guide, il vous faudra vous abonner à celui-ci. L'abonnement est sur une base annuelle et sera automatiquement renouvelé dans le 24 heures précédant l'échéance de celui-ci, à moins que que vous procédiez à l'annulation de l'abonnement au minimum 1 journée avant la fin de l'abonnement ou que vous désactiviez le renouvellement automatique de l'abonnement. Les abonnements peuvent être gérés par l'utilisateur et le renouvellement automatique peut être désactivé en accédant aux paramètres du compte de l'utilisateur après l'achat. L'abonnement comprend les mises à jour automatiques du guide lorsque celui-ci est mis à jour. Les conditions d'utilisation et la politique de confidentialité peuvent être consultés en visitant le site suivant http://iucpq.qc.ca/sites/default/files/mises_en_garde_et_conditions_-_politique_de_confidentialite.pdf L'application Guide d’administration intraveineuse des médicaments critiques est une réalisation de Effenti inc. (www.effenti.ca)

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

Screenshots

Guide Rx Critiques4 screens
Lanthier4 screens

Verdict

The call

The clearest difference is review sentiment: Lanthier at 62% against Guide Rx Critiques's 19%. Lanthier also leads on update cadence (every 2 months vs every 6 months). Guide Rx Critiques's advantage is monetization model (free with in-app purchases vs subscription) and iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases 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

Both are free to download. Guide Rx Critiques sells 1 in-app purchase, starting at $9.99 per year and Lanthier sells 2 in-app purchases, starting at $19.49 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Guide Rx Critiques ships an update every 6 months, Lanthier every 2 months. The most recent releases landed on September 12, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
Guide Rx Critiques versus Lanthier: the parameters behind the verdict, then further details
ParameterGuide Rx CritiquesLanthier
PriceFreeFree
Rating—3.8 (5 ratings) — better
Positive reviews19.0% of reviews61.9% of reviews — better
Number of ratings—5 — better
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size55 MB70 MB
Age rating17+17+
DeveloperL'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ)Les Éditions Formed inc.

Customer experience

Guide Rx Critiques

Written reviews21 reviews
Positive19.0%
Neutral4.8%
Negative76.2%

Lanthier

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

In-app purchases

1 purchases

Guide Rx Critiques

Subscriptions1
  • Abonnement au guide complet$9.991 Year
2 purchases

Lanthier

Subscriptions2
  • Lanthier - current users3 Months trial$19.491 Year
  • Lanthier - new users7 Days trial$19.491 Year

Questions

Is Guide Rx Critiques free?
Guide Rx Critiques is free to download, with in-app purchases available.
Is Lanthier free?
Lanthier is free to download, with in-app purchases available.
Do Guide Rx Critiques or Lanthier have ads?
Neither Guide Rx Critiques nor Lanthier shows ads.
Which is updated more often, Guide Rx Critiques or Lanthier?
Guide Rx Critiques ships an update every 6 months, and Lanthier every 2 months. Most recently, Guide Rx Critiques was updated on September 12, 2026 and Lanthier on September 28, 2026.

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