# MHApp - Malignant Hyperthermia > Educational tool for managing malignant hyperthermia crises and related medical information. (iPhone/iPad app by Girard Development GmbH.) - Source: https://appshunter.io/ios/app/mhapp-malignant-hyperthermia/id392766134 (this page in markdown: same URL + `.md`) - Developer: [Girard Development GmbH](https://appshunter.io/developer/392766137) - Category: Medical, Health & Fitness - Price: Free - Rating: 4.10/5 from 9 App Store ratings · 12 written reviews indexed - Age rating: 12+ - Requires: iOS 13.0 · 4 MB - Languages: American English, German (Germany) - Released: 2010-10-20 - Data updated: 2026-08-14 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/mhapp-malignant-hyperthermia/id392766134/reviews.md ## What is MHApp? Finally it’s back! The much appreciated MHApp is finally back in the AppStore. Rewritten from ground up in Swift. A modern user interface. And the best is: it is free of charge! Please note: MHApp is not a substitute for medical advice. MHApp is intended for educational purposes only. The purpose of this app is to use it to train and teach yourself in management of malignant hyperthermia. It might serve as a valuable tool in simulated MH scenarios. Do you know what to do in case of a malignant hyperthermia crisis? Are you sure somebody will take a detailed protocol during your actions? MHApp does both for you: MHApp is like an interactive MH-emercency poster. Simulating an MH crisis and teaching the acute management will certainly be of great value in case of a real crisis. MHApp will guide you through a simulated malignant hyperthermia (MH) crisis. The App includes treatment of acidosis, hyperkalemia and dosing of dantrolene or ryanodex Every action and injected dantrolene doses are recorded in a log file, which can be exported. The clinical grading score (CGS) estimates the probability of an MH episode. The result can be exported as PDF. A section with information about MH, anesthesia for the known MH patients, preparation of anesthesia workstations, MH-mutations and more. This app was developed by international experts in Malignant Hyperthermia: Dr. Henry Rosenberg (President of MHAUS) Prof. Thierry Girard (director of the Swiss MH unit) MHApp is endorsed by the North American MH Group (www.mhaus.org), as well as by the European MH Group (www.emhg.org). Programmed by Thierry Girard, Girard Development GmbH DISCLAIMER: The application MHApp is not a substitute for medical advice. MHApp is intended for educational purposes only. While the data may be updated periodically, users should independently check medical literature and package inserts or other sources for the latest information. Any and all liability arising directly or indirectly from the use of this application is hereby disclaimed. The information herein is provided "as is" and without any warranty expressed or implied. All direct, indirect, special, incidental, consequential or punitive damages arising from any use of this application or data contained herein is disclaimed and excluded. ## Key features - Simulates MH crises - Guides acute management - Records actions and doses - Exports log files - Clinical grading score (CGS) - Educational MH information ## Recent user reviews (10 of 12) All indexed reviews: https://appshunter.io/ios/app/mhapp-malignant-hyperthermia/id392766134/reviews.md ### 5/5 — Used to treat case of MH *2016-08-01* On Friday I had my first case of MH intraoperatively. This App was a lifesaver, literally. When I called the MH hotline, they informed me I had already done everything I needed to do to treat my patient. Strongly recommend you buy this app. ### 2/5 — Crashes constantly *2016-02-18* Crashes in multiple parts of the app and won't store the MH phone number in settings. ### 3/5 — Nice idea. Needs work *2014-12-01* Nice idea. Hyperlinks return error messages. Buggy. Needs work. ### 5/5 — Must Have APP! *2013-07-17* Excellent. I hope never having a MH pacient, but in this case I am pretty sure this app will be extremely helpful! ### 5/5 — Great anesthesia resource! *2012-06-11* Perfect resource for any anesthesia provider to have on hand in the event of a rare but life-threatening MH event. Even creates a time logged series of events that can be saved and emailed to the MH registry. ### 5/5 — Anesth *2012-05-10* Very useful app, extremely reasonable price for the provided info. ### 2/5 — Not impressed. *2012-04-20* High price. Poor user interface. Just my two cents. -cardiac anesthesiologist. ### 3/5 — Not Free ! *2011-12-29* This software was listed as "free" but my credit card has been charged !!! "Buyer" beware ! ### 5/5 — The One and only *2011-11-05* It's really a good App. Well Done. If you've got a mh suspect it's the Solution to be calm.and u've got a Documentation Tool Inside...really Useful... ### 5/5 — Sinnvolle App für Anästhesisten *2011-01-19* Im Falle einer Malignen Hyperthermie muss der Patient unverzüglich nach den aktuellen Guidelines therapiert werden, um schwerwiegende Schäden abzuwenden. Aber wer hat schon die aktuellen Empfehlungen und Dosierungen im Kopf? Diese App. beinhaltet einen übersichtlichen Therapiealgorithmus und optimiert damit das Vorgehen im Rahmen einer Malignen Hyperthermie. Ich halte diese App daher für äußerst sinnvoll! Der Preis von 3,99€ ist gerechtfertigt und kommt außerdem der weiteren MH-Erforschung zugute! ## Frequently asked questions about MHApp ### What is MHApp used for? MHApp is designed for educational purposes to help users train and learn the management of malignant hyperthermia crises. It simulates these emergencies and guides users through acute management steps. ### Can MHApp be used as a substitute for medical advice? No, MHApp is explicitly stated to not be a substitute for medical advice. It is intended solely for educational and training purposes in simulated scenarios. ### What specific treatments does MHApp cover? MHApp guides users through the treatment of acidosis, hyperkalemia, and the dosing of dantrolene or ryanodex during a simulated malignant hyperthermia crisis. ### Does MHApp record user actions? Yes, every action taken and dantrolene dose injected during a simulated crisis is recorded in a log file. This log can be exported for review. ### What is the Clinical Grading Score (CGS) in MHApp? The Clinical Grading Score (CGS) feature in MHApp estimates the probability of a malignant hyperthermia episode. The result of this score can also be exported as a PDF. ### Who developed MHApp? MHApp was developed by international experts in Malignant Hyperthermia, including Dr. Henry Rosenberg (President of MHAUS) and Prof. Thierry Girard. It is endorsed by the North American MH Group and the European MH Group. ### What devices does MHApp support? MHApp is available for iPhone, iPad, and iPod devices. It was rewritten in Swift with a modern user interface. ### How often is MHApp updated? The latest version of MHApp is 2.4, last updated on October 21, 2022. The app was originally released on October 20, 2010. ## Version history (last 5 releases) ### 2.4 — 2022-10-21 minor improvements ### 2.3 — 2021-03-07 New layout of Clinical Grading Score (CGS) view Export of CGS data as PDF Apps live from AppStore ratings, therefore MHApp asks for a rating (maximal 3 times a year) ### 2.2 — 2021-02-28 German localisation Send MH event log directly via email. minor bug fixes ### 2.1.2 — 2021-02-24 fixed a localisation issue ### 2.1.1 — 2021-02-24 corrected hotline number for Germany, disabled 'language' in settings, as it is currently english only. ## Apps similar to MHApp | App | Rating | Price | Category | | --- | --- | --- | --- | | [ASRA Coags](https://appshunter.io/ios/app/asra-coags/id858796572) | 1.3 (407) | Free | Medical | | [Block Buddy Pro](https://appshunter.io/ios/app/block-buddy-pro/id1471006793) | 2.8 (75) | Free | Medical | | [Pedi Crisis 2.0](https://appshunter.io/ios/app/pedi-crisis-20/id1409734476) | 4.6 (17) | Free | Medical | | [MGH Clinical Anesthesia](https://appshunter.io/ios/app/mgh-clinical-anesthesia/id1604246152) | 4.5 (22) | Free | Medical | | [Emergency Manual](https://appshunter.io/ios/app/emergency-manual/id6446658508) | 5.0 (12) | Free | Medical | | [Periop Pacemaker](https://appshunter.io/ios/app/periop-pacemaker/id6615070538) | 5.0 (7) | Free | Medical | ## More apps by Girard Development GmbH - [CoaguSafe - Anticoagulant](https://appshunter.io/ios/app/coagusafe-anticoagulant/id645215662) - [ObesiDose](https://appshunter.io/ios/app/obesidose/id1046191526) All apps by Girard Development GmbH: https://appshunter.io/developer/392766137 ## Related topics [mhapp](https://appshunter.io/ios/topics/mhapp) --- *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 2026-08-14.*