Comparison

Master Anesthesia vs Anesthetize

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

Head to head
About

Master Anesthesia

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.

Highlights
  • 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
Features
Currently charting
Read full description

Master Anesthesia helps anesthesia professionals find answers quickly to common questions. The primary purpose is to provide clinicians with the highlighted anesthetic implications of specific diseases, surgical cases, and drugs. In addition, a searchable list of over 1,000 acronyms is provided. A calculator has also been created to assist with maximum local anesthetic dosage, estimated blood volume, maximum allowable blood loss, fluid calculations, equipment, vitals, and more. Subscription and Purchase Options: Clinical Access Pro: $69.99/year – Full access to all clinical tools and updates. Auto-renews yearly. Full Access CE: $449.99/year – Full access to Clinical Access Pro + everything CRNAs need for their 4-year cycle. More than 150 pre-approved Class A (Mac-Ed) credits, and over 100 courses to choose from. Payment & Renewal: Payment will be charged to your Apple ID account at the time of confirmation. Annual subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription anytime in your Apple ID account settings. For more details on managing subscriptions, visit: https://support.apple.com/en-us/118428 Website: https://masteranesthesia.com Terms of Use: https://masteranesthesia.com/terms-of-service Privacy Policy: https://masteranesthesia.com/privacy-policy-and-disclaimer

About

Anesthetize

This AI-powered reference tool provides anesthesia professionals with quick, accurate answers to clinical questions. It offers structured summaries, textbook-validated responses, and exam preparation tools, designed for efficient OR workflows.

Highlights
  • Instant clinical answers
  • Textbook-validated responses
  • Student mode & exam prep
  • Save prompts and explanations
  • Domain-focused knowledge
  • Concise, practical answers
Features
Read full description

Anesthetize is a fast, accurate anesthesia AI-reference tool built for anesthesia professionals. Get concise, authoritative answers in seconds, grounded in trusted anesthesia textbooks and guidelines. Whether you’re in the OR, on call, or preparing for boards, Anesthetize gives you clear explanations that can be trusted. Key Features Instant Clinical Answers Ask anything related to anesthesia — drugs, diseases, physiology, OB, trauma, regional, pediatrics, equipment, crisis management, and more. Anesthetize responds with evidence-based, clinically focused guidance. Structured summaries outlining: • Pre-op evaluation • Intra-op management goals • Complications • Post-op considerations Textbook-Validated Responses Anesthetize cross-checks content against authoritative anesthesia sources to enhance reliability. Designed to support safe clinical decision-making and teaching. Student Mode & Exam Prep Simplified explanations, step-by-step logic, board-style reinforcement, and rapid review tools for SRNAs and residents. Save your most valuable prompts, sheets, and case explanations for quick access across all devices. Built for Anesthesia Professionals Unlike general AI tools, Anesthetize is purpose-built for anesthesia care: • Vetted, domain-focused knowledge • Designed by a practicing CRNA • Concise, practical answers for real OR workflows • No PHI allowed to maintain safety and compliance • Fast performance for on-the-go use Who It’s For • CRNAs • Anesthesiologists • AAs • SRNAs and residents • Faculty and preceptors Subscription Anesthetize.ai Unlimited is an auto-renewable subscription that provides access to premium features within the Anesthetize app. Subscription Length Subscriptions are available on a monthly or annual basis and provide unlimited AI queries within the Anesthetize app. Subscription Pricing Monthly subscriptions are priced at $25.99 per month. Annual subscriptions are priced at $259.99 per year. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://anesthetize.ai/docs/privacy.pdf

Screenshots

Master Anesthesia4 screens
Anesthetize4 screens

Verdict

The call

The clearest difference is monetization model: Anesthetize at free with in-app purchases against Master Anesthesia's subscription. Anesthetize also leads on review sentiment (100% vs 78%). Master Anesthesia's advantage is ratings volume (2K vs 1) and update cadence (weekly vs monthly). On price, rating, ads and in-app purchases 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. Master Anesthesia sells 7 in-app purchases, starting at $69.99 per year and Anesthetize sells 2 in-app purchases, starting at $25.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Master Anesthesia against 5.0 for Anesthetize. That said, the two scores are not equally well evidenced: Master Anesthesia has 2K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 78% of Master Anesthesia's written reviews are positive against 100% of Anesthetize's.

UpkeepUpdate frequency

Master Anesthesia ships an update weekly, Anesthetize monthly. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

Scorecard6 real differences · 5 level
Master Anesthesia versus Anesthetize: the parameters behind the verdict, then further details
ParameterMaster AnesthesiaAnesthetize
PriceFreeFree
Rating4.9 (2K ratings)5.0 (1 ratings) — better
Positive reviews78.5% of reviews100.0% of reviews — better
Number of ratings2K — better1
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank#194 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size69 MB3 MB
Age rating12+17+
DeveloperMatthew WillisAnesthetize

Customer experience

Master Anesthesia

All ratings1,995 ratings
Positive97.7%
Neutral0.7%
Negative1.6%
Written reviews93 reviews
Positive78.5%
Neutral5.4%
Negative16.1%

Anesthetize

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Master Anesthesia

Reported bugs

2 issues
  • Incorrect terminology and credentials on the starting screen
  • Inconsistent behavior when accessing content after subscription changes

Requested features

3 requests
  • Offline access to content
  • Apple Watch integration for the calculator
  • More detailed and up-to-date information on procedures and conditions

Anesthetize

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Master Anesthesia

Subscriptions2
  • Master Anesthesia Contributor7 Days trial$69.991 Year
  • Full Access CE7 Days trial$449.001 Year
One-time5
  • Module Unlock$24.99
  • Course Unlock$99.00
  • Master Anesthesia One Time$99.99
Show 2 more
  • One-Time$149.99
  • Course Unlock$449.00
2 purchases

Anesthetize

Subscriptions2
  • Unlimited Monthly7 Days trial$25.991 Month
  • Unlimited Yearly7 Days trial$259.991 Year

Questions

Is Master Anesthesia free?
Master Anesthesia is free to download, with in-app purchases available.
Is Anesthetize free?
Anesthetize is free to download, with in-app purchases available.
Which has better reviews, Master Anesthesia or Anesthetize?
Anesthetize is rated higher. Master Anesthesia averages 4.9 out of 5 from 2K ratings, while Anesthetize averages 5.0 from 1 ratings.
Do Master Anesthesia or Anesthetize have ads?
Neither Master Anesthesia nor Anesthetize shows ads.
Which is updated more often, Master Anesthesia or Anesthetize?
Master Anesthesia ships an update weekly, and Anesthetize monthly. Most recently, Master Anesthesia was updated on October 25, 2026 and Anesthetize on October 23, 2026.

Other comparisons