How to Cancel Master Anesthesia

How to Cancel Master Anesthesia

Written by on 2023-03-07

We have made it super easy to cancel Master Anesthesia subscription
at the root to avoid any and all mediums "Matthew Willis" (the developer) uses to bill you.
Now let us get into the crux of this guide.

How Easy is it to Cancel Master Anesthesia?


Complete Guide to Cancel and Delete Master Anesthesia

A few things to note and do before cancelling:

  1. Subscribing to a plan and not cancelling it manually will result in the plan auto-renewing.
  2. Cancelling a subscription during a free trial may result in losing the trial account.
  3. You must always cancel a subscription at least 24 hours before the trial period ends.


How to Cancel Master Anesthesia Subscription on iPhone or iPad:

  1. Open Settings » ~Your name~ » and click "Subscriptions".
  2. Click the Master Anesthesia (subscription) you want to review.
  3. Click Cancel.

How to Cancel Master Anesthesia Subscription on Android Device:

  1. Open your Google Play Store app.
  2. Click on Menu » "Subscriptions".
  3. Tap on Master Anesthesia (subscription you wish to cancel)
  4. Click "Cancel Subscription".

How to Cancel Master Anesthesia Subscription on a Mac computer:

  1. Goto your Mac AppStore, Click ~Your name~ (bottom sidebar).
  2. Click "View Information" and sign in if asked to.
  3. Scroll down on the next page shown to you until you see the "Subscriptions" tab then click on "Manage".
  4. Click "Edit" beside the Master Anesthesia app and then click on "Cancel Subscription".

How to Cancel Master Anesthesia Subscription on Paypal:

To cancel your Master Anesthesia subscription on PayPal, do the following:

  1. Login to .
  2. Click "Settings" » "Payments".
  3. Next, click on "Manage Automatic Payments" in the Automatic Payments dashboard.
  4. You'll see a list of merchants you've subscribed to. Click on "Master Anesthesia" or "Matthew Willis" to cancel.

What to do if you Subscribed directly on Master Anesthesia's Website:

  1. Reach out to Matthew Willis - the company behind Master Anesthesia directly: Get all Master Anesthesia's contact details here

  2. If the company has an app they developed in the Appstore, you can try contacting Matthew Willis (the app developer) for help through the details of the app.

How to delete Master Anesthesia account:

  1. Reach out directly to Master Anesthesia via Justuseapp. Get all Contact details →

  2. Send an email to [email protected] Click to email requesting that they delete your account.

Delete Master Anesthesia from iPhone:

To delete Master Anesthesia from your iPhone, Follow these steps:

  1. On your homescreen, Tap and hold Master Anesthesia until it starts shaking.
  2. Once it starts to shake, you'll see an X Mark at the top of the app icon.
  3. Click on that X to delete the Master Anesthesia app.

Delete Master Anesthesia from Android:

  1. Open your GooglePlay app and goto the menu.
  2. Click "My Apps and Games" » then "Installed".
  3. Choose Master Anesthesia, » then click "Uninstall".


This application helps anesthesia professionals find answers quickly to common questions. The primary purpose is to provide the clinician with the highlighted anesthetic implications of specific diseases, surgical cases, and drugs. In addition, a searchable list of over 1000 acronyms is also provided. A calculator has also been created to help with maximum local anesthetic, estimated blood volume, maximum allowable blood loss, fluid calculations, equipment, vitals, and more.

Reviews & Common Issues: 5 Comments


Omg!!!!!! This is the app I’ve wanted

Absolutely, idiot proof. So easy and intuitive to use. Thank you, for all your hard work.

One stop shop...

Thank you for all the consolidation that this app has to offer! Wonderful for clinical practice

By Gb1109

A Vargo Competition app...finally, and free

I’ve been on the app for just minutes and already loving it. Thank you for producing it.

By daWalster

Great tool

Thank you for another great resource tool to ad in my new practice. Easy to navigate and tons of great topics to choose from.

By LMartinCRNA

Master Anesthesia

This is a quick and easy app for clinical anesthesia. My favorite part is the calculations tab as I mainly use it when providing pediatric anesthesia.

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