Comparison

MHApp vs Magnet Master

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

Head to head
About

MHApp

This app simulates malignant hyperthermia crises, guiding users through acute management and recording actions. It also provides educational information on MH and related topics, developed by international experts.

Highlights
  • Simulates MH crises
  • Guides acute management
  • Records actions and doses
  • Exports log files
  • Clinical grading score (CGS)
  • Educational MH information
Features
Read full description

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.

About

Magnet Master

This app helps perioperative cardiac device management planning for surgeries involving electrocautery. It generates a personalized plan based on patient profiles and surgical details, offering guidance on device magnets and reprogramming. It also provides information on device responses to magnets and manufacturer contacts.

Highlights
  • Perioperative cardiac device management planning
  • Patient profile creation
  • Electrocautery guidance
  • Device magnet and reprogramming recommendations
  • Device response to magnet information
  • Manufacturer contact details
  • Shareable reports (email, text, print)
Features
Currently charting
Read full description

Magnet Master is a perioperative cardiac device management planner which assists the user in planning for surgery using electrocautery in patients with cardiac devices. It is based on the consensus guideline document: "The Heart Rhythm Society (HRS)/American Society of Anesthesiologists (ASA) Expert Consensus Statement on the Perioperative Management of Patients with Implantable Defibrillators, Pacemakers and Arrhythmia Monitors: Facilities and Patient Management", (Crossley GH et al, Heart Rhythm, Vol 8, No 7, July 2011, pages 1114-1136.) The user completes a patient profile consisting of information regarding surgical location and pacemaker dependence and a plan is generated which offers guidance regarding the need for use of a device magnet or device reprogramming. Additional information consists of device response to magnet application and contact information of device manufactures and their representatives. Anesthesiologists, surgeons and associated allied health practitioners can easily implement various measures to mitigate the effects of electrocautery on device function. The report may be shared via email, text message or printed using AirPrint-enabled printers .

Screenshots

MHApp4 screens
Magnet Master4 screens

Verdict

The call

The clearest difference is price: MHApp at Free against Magnet Master's $4.99. MHApp also leads on update cadence (every 3 weeks vs every 13 months) and iOS requirement (13.0 vs 17.6). Magnet Master's advantage is rating (4.9 vs 4.1) and review sentiment (100% vs 67%). On 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

MHApp is free to download; Magnet Master costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Magnet Master holds the better App Store score, 4.9 against 4.1. That said, the two scores are not equally well evidenced: Magnet Master has 112 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 67% of MHApp's written reviews are positive against 100% of Magnet Master's.

UpkeepUpdate frequency

MHApp ships an update every 3 weeks, Magnet Master every 13 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

Scorecard8 real differences · 3 level
MHApp versus Magnet Master: the parameters behind the verdict, then further details
ParameterMHAppMagnet Master
PriceFree — better$4.99
Rating4.1 (9 ratings)4.9 (112 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings9112 — better
Update frequencyEvery 3 weeks — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#199 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size4 MB1 MB
Age rating12+17+
DeveloperGirard Development GmbHBusy Being Born Solutions, LLC

Customer experience

MHApp

All ratings9 ratings
Positive66.7%
Neutral11.1%
Negative22.2%
Written reviews12 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

Magnet Master

All ratings111 ratings
Positive98.2%
Neutral0.0%
Negative1.8%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MHApp

No in-app purchases

None

Magnet Master

No in-app purchases

Questions

Is MHApp free?
MHApp is free to download, with no in-app purchases.
Is Magnet Master free?
Magnet Master costs $4.99, with no in-app purchases.
Which has better reviews, MHApp or Magnet Master?
Magnet Master is rated higher. MHApp averages 4.1 out of 5 from 9 ratings, while Magnet Master averages 4.9 from 112 ratings.
Do MHApp or Magnet Master have ads?
Neither MHApp nor Magnet Master shows ads.
Which is updated more often, MHApp or Magnet Master?
MHApp ships an update every 3 weeks, and Magnet Master every 13 months. Most recently, MHApp was updated on October 24, 2026 and Magnet Master on October 26, 2026.

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