Master Anesthesia

Master Anesthesia

by Matthew Willis

2K ratings
93 reviews
#121 in top-grossing Medical
🏥 Medical
Free
In-App Purchases

Details

Released
January 28, 2021
Updated
October 26, 2026

Features

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About

This app provides anesthesia professionals with quick answers to common questions. It highlights anesthetic implications of diseases, surgical cases, and drugs, and includes a searchable acronym list and a comprehensive calculator for dosages, blood loss, and fluid management.

✓Disease anesthetic implications
✓Surgical case anesthetic implications
✓Drug anesthetic implications
✓Searchable acronym list
✓Local anesthetic dosage calculator
✓Blood volume and loss calculator
✓Fluid and equipment calculations
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What users say about Master Anesthesia

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+1

What's New in Master Anesthesia

3.1.8

October 26, 2026

New: after you sign up, the app asks for your profession and role (student, staff or locum) and then confirms your mobile number with a texted code, so we can reach you about your account and send alerts you ask for. Calculators: Pediatric/Adult and Male/Female are single tap-to-flip toggles, Notes moved into the bottom tab row, Chloroprocaine joins the toxicity quick picks. Lessons: dark mode and text size apply everywhere. Settings: pick which tab the app opens on.

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Subscriptions & In-App Purchases

Master Anesthesia Contributor

Master Anesthesia Contributor

$69.991 Year
7 Days trial
How to cancel Master Anesthesia subscription ⁉️

Charts

Top Grossing

📉 121-11

Medical

This app dropped -11 positions in Medical chart.

Last updated on October 28, 2026.

User reviews

Better mobile use than apex but needs improvement.

Leaving the below for context for an original 3 star review. The MA team responded to my concerns and updated their app within less than two weeks of posting. Can’t beat that for responsiveness.

Original review:

Finding MA to be much more user friendly and experience on mobile than APEX for continuing ed, and it has elements that vastly improve on what Vargo/CoExistinf offers. However, the app is in desperate need of a few improvements:

1) Most importantly, a way to change font size.

2) A per-lesson way to leave feedback or suggest corrections. For $450, it bums me out to see major typos and sentences that just drop off in the middle of a thought. You have a lot of content, and proofreading is hard, but there’s no simple way for users to help you correct mistakes, and this devalues your product.
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Response from developer

Thank you, Jay. You were right on both counts, and we got to work the same week. Version 3.1.6, released nine days after your review, adds a text size and appearance control in every lesson, plus a "Suggest a correction" sheet on every lesson so you can flag a typo or a dropped sentence right where you see it, and we fix it from there. We also went back through the course text ourselves and corrected 29 lessons, including the cut-off sentences you mentioned, with audio re-recorded where it changed. Update to 3.1.6 and give it another look. If it now earns it, we would be grateful for a 5-star update to this review. Either way, thank you for pushing us to be better. Matthew, Master Anesthesia

Better mobile use than apex but needs improvement.

Finding MA to be much more user friendly and experience on mobile than APEX for continuing ed, and it has elements that vastly improve on what Vargo/CoExistinf offers. However, the app is in desperate need of a few improvements:

1) Most importantly, a way to change font size.

2) A per-lesson way to leave feedback or suggest corrections. For $450, it bums me out to see major typos and sentences that just drop off in the middle of a thought. You have a lot of content, and proofreading is hard, but there’s no simple way for users to help you correct mistakes, and this devalues your product.
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My go to

Amazing resource. Constantly updated with current evidence. And gives little snippets of evidence based practice updates in email.

Exceptional

By far the best companion app for anyone in the anaesthesia field.

Improving all the time

I’ve been using MA for at least 5 or so years. It’s a great app and each update is an amazing improvement. I recommend this app to colleagues all the time. It’s easy to navigate and easy to read especially in the OR. Keep up the great work!

User experience

🐞

Reported Bugs

2 issues

Incorrect terminology and credentials on the starting screen

Bug

Inconsistent behavior when accessing content after subscription changes

Bug
✨

Requested Features

3 requests

Offline access to content

Feature

Apple Watch integration for the calculator

Feature

More detailed and up-to-date information on procedures and conditions

Feature

FAQ

What does the Master Anesthesia app do?

This app is designed to help anesthesia professionals quickly find answers to common clinical questions. It provides information on the anesthetic implications of various diseases, surgical cases, and drugs. It also includes a comprehensive calculator for managing dosages, fluid balance, and other critical metrics.

What are the key features of Master Anesthesia?

Key features include detailed anesthetic implications for diseases, surgical scenarios, and medications. It also offers a searchable database of over 1,000 acronyms. A robust calculator assists with maximum local anesthetic dosage, estimated blood volume, maximum allowable blood loss, fluid calculations, equipment needs, and vital signs.

How much does Master Anesthesia cost?

The app offers two purchase options: Annual Access for $49.99 per year, which auto-renews, or Lifetime Access for a one-time purchase of $149.99. Both options provide full access to features and updates.

Is Master Anesthesia compatible with my device?

Payment and subscription management are handled through your Apple ID account settings. While specific device compatibility isn't detailed, it is available on the Apple platform. You can manage or cancel your subscription anytime within your Apple ID account settings.

Who would benefit from using Master Anesthesia?

This app is specifically tailored for anesthesia professionals, including anesthesiologists, nurse anesthetists, and residents. It is ideal for those who need rapid access to critical information and calculation tools during patient care or for study.