Comparison

iTIVA Anesthesia Plus vs Master Anesthesia

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

Head to head
About

iTIVA Anesthesia Plus

This app simulates drug concentrations in plasma and optimizes infusion schemes for medical professionals. It offers a comprehensive drug library, target-controlled infusion simulation, and MAC age calculation. Users can explore drug interactions, share cases, and export data.

Highlights
  • Accurate drug concentration estimation
  • Target Controlled Infusion (TCI) simulation
  • Comprehensive drug library (28 drugs)
  • Explore drug interactions (70 PK, 10 PD models)
  • MAC Age Calculation
  • Intraoperative milestones & case sharing
  • Save and run multiple simulations
  • Excel data export
Features
Read full description

Introducing iTIVA: Your Ultimate Pharmacokinetic / Pharmacodynamic Simulation App Are you a medical professional looking to enhance precision and efficiency in drug administration while expanding your knowledge in pharmacokinetics? Look no further than iTIVA, the leading pharmacokinetic/pharmacodynamic simulation application designed to revolutionize the way you estimate drug concentrations in plasma and optimize infusion schemes! Key Features: • Accurate Drug Concentration Estimation: Harness the power of cutting-edge mathematical models to estimate drug concentrations in plasma. iTIVA offers an extensive library of 28 drugs and 70 pharmacokinetic models, empowering you to control anesthesia IV drugs like an expert. • Target Controlled Infusion (TCI) Simulation: Take control of TCI pumps like never before! iTIVA simulates TCI pump behavior, allowing you to calculate infusion schemes to attain and maintain desired target concentrations in plasma or effect site. It's like having a reliable assistant right at your fingertips. • Comprehensive Drug Library: From Remifentanil, Propofol to Heparin and beyond, iTIVA boasts an impressive range of 28 drugs to cater to your unique needs. (Remifentanil, Fentanyl, Sufentanil, Alfentanil, Hydromorphone, Morphine, Ketamine, Procaine, Lidocaine, Propofol, Etomidate, Dexmedetomidine, Midazolam, Remimazolam, Thiopental, Atracurium, Cisatracurium, Rocuronium, Vecuronium, Sugammadex, Tranexamic, Magnesium sulfate, Diazepam, Heparin and Protamine) • Explore Drug Interactions: With 70 pharmacokinetic models and 10 pharmacodynamic models at your disposal, iTIVA facilitates in-depth exploration of drug interactions. • MAC Age Calculation: Quickly determine end-tidal (Et) concentration for Isoflurane, Sevoflurane, and Desflurane using the Mapleson equation. No more guesswork – iTIVA streamlines the process for you. • Intraoperative Milestones & Case Sharing: Record crucial intraoperative milestones and effortlessly share cases with colleagues using QR codes. Collaboration has never been this seamless! • Save and Run Multiple Simulations: Save your simulation cases for future review or run multiple simulations simultaneously. iTIVA adapts to your workflow and maximizes efficiency. • Excel Data Export: All recorded information can be conveniently exported as an Excel file. Stay organized and analyze your data with ease. iTIVA's yearly subscription is available for US$9,99/year.  • The subscription will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • The account will be charged for renewal within 24-hours before the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable More details can be found here iTIVA Privacy Policy: https://itiva.co/privacy.html Terms and Conditions: http://itiva.co/terms.html

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

Screenshots

iTIVA Anesthesia Plus4 screens
Master Anesthesia4 screens

Verdict

The call

The clearest difference is update cadence: Master Anesthesia at every 6 days against iTIVA Anesthesia Plus's every 2 months. Master Anesthesia also leads on chart position (#179 vs unranked) and ratings volume (2K vs 330). iTIVA Anesthesia Plus's advantage is iOS requirement (11.0 vs 15.1). On price, rating, review sentiment and ads 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. iTIVA Anesthesia Plus sells 2 in-app purchases, starting at $9.99 per year and Master Anesthesia sells 7 in-app purchases, starting at $69.99 per year. 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 — 4.8 for iTIVA Anesthesia Plus against 4.9 for Master Anesthesia. That said, the two scores are not equally well evidenced: Master Anesthesia has 2K ratings behind it against 330, so its average is the more settled of the two. Written reviews are what separate them: 73% of iTIVA Anesthesia Plus's written reviews are positive against 79% of Master Anesthesia's.

UpkeepUpdate frequency

iTIVA Anesthesia Plus ships an update every 2 months, Master Anesthesia every 6 days. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

Scorecard4 real differences · 7 level
iTIVA Anesthesia Plus versus Master Anesthesia: the parameters behind the verdict, then further details
ParameteriTIVA Anesthesia PlusMaster Anesthesia
PriceFreeFree
Rating4.8 (330 ratings)4.9 (2K ratings) — better
Positive reviews72.7% of reviews79.1% of reviews — better
Number of ratings3302K — better
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionSubscription
Best chart rank—#179 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size125 MB69 MB
Age rating17+12+
DeveloperANESTESIARTE CALI SASMatthew Willis

Customer experience

iTIVA Anesthesia Plus

All ratings330 ratings
Positive94.8%
Neutral1.8%
Negative3.3%
Written reviews11 reviews
Positive72.7%
Neutral18.2%
Negative9.1%

Master Anesthesia

All ratings1,985 ratings
Positive97.8%
Neutral0.7%
Negative1.5%
Written reviews91 reviews
Positive79.1%
Neutral4.4%
Negative16.5%

Bugs and requests

iTIVA Anesthesia Plus

Not enough reviews yet to summarise bugs or 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

In-app purchases

2 purchases

iTIVA Anesthesia Plus

Subscriptions2
  • iTIVA yearly$9.991 Year
  • iTIVA yearly 2021$9.991 Year
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

Questions

Is iTIVA Anesthesia Plus free?
iTIVA Anesthesia Plus is free to download, with in-app purchases available.
Is Master Anesthesia free?
Master Anesthesia is free to download, with in-app purchases available.
Which has better reviews, iTIVA Anesthesia Plus or Master Anesthesia?
Master Anesthesia is rated higher. iTIVA Anesthesia Plus averages 4.8 out of 5 from 330 ratings, while Master Anesthesia averages 4.9 from 2K ratings.
Do iTIVA Anesthesia Plus or Master Anesthesia have ads?
Neither iTIVA Anesthesia Plus nor Master Anesthesia shows ads.
Which is updated more often, iTIVA Anesthesia Plus or Master Anesthesia?
iTIVA Anesthesia Plus ships an update every 2 months, and Master Anesthesia every 6 days. Most recently, iTIVA Anesthesia Plus was updated on September 23, 2026 and Master Anesthesia on September 25, 2026.

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