Comparison

iElastance vs iTIVA Anesthesia Plus

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

Head to head
About

iElastance

Features
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iElastance estimates left ventricular end-systolic elastance (Ees), effective arterial elastance (Ea) and their ratio, ventricular–arterial coupling (VAC), from six values you already have at the bedside: cuff pressures, a standard echocardiogram and two systolic time intervals. No catheter, no extra equipment. FREE • Single-beat calculator (Chen et al., J Am Coll Cardiol 2001): systolic and diastolic pressure, ejection fraction, stroke volume, pre-ejection and total ejection time. • Results update as you type, with checks on impossible values. • "How to measure" guide with diagrams of the method of disks and of systolic times on the LVOT pulsed Doppler. IELASTANCE PREMIUM • Pressure–volume diagram: ESPVR and Ea lines, stroke volume, ESP, EDV, ESV and V0. • Cases: keep your 10 most recent cases, each with as many measurements as you need (baseline, after fluids, after a vasopressor or inotrope…). • Trends of VAC, Ea and Ees over time. • PDF report with results, diagrams, measurement table, trends, method and reference, ready to print or share. • Archive export and import to move your cases to another device. PRIVATE BY DESIGN No account, no analytics, no advertising. Cases and reports stay on your device. SUBSCRIPTION iElastance Premium is an auto-renewing yearly subscription with a 7-day free trial for new subscribers. Payment is charged to your App Store account at confirmation of purchase after the trial. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel it in your account settings. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ielastance.sonable.app/privacy-app.html FOR HEALTHCARE PROFESSIONALS iElastance is intended for physicians and healthcare professionals in intensive care, anaesthesia and cardiology. Results are estimates from a published model and support, never replace, clinical judgement. It does not provide diagnoses or treatment recommendations.

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
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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

Screenshots

iElastance4 screens
iTIVA Anesthesia Plus4 screens

Verdict

The call

The clearest difference is update cadence: iTIVA Anesthesia Plus at every 2 months against iElastance's every 8 months. iTIVA Anesthesia Plus also leads on iOS requirement (11.0 vs 13.0). On price, 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

Both are free to download. iElastance sells 1 in-app purchase, starting at $9.99 per year and iTIVA Anesthesia Plus sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

iElastance ships an update every 8 months, iTIVA Anesthesia Plus every 2 months. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
iElastance versus iTIVA Anesthesia Plus: the parameters behind the verdict, then further details
ParameteriElastanceiTIVA Anesthesia Plus
PriceFreeFree
Rating—4.8 (343 ratings) — better
Positive reviews—72.7% of reviews
Number of ratings—343 — better
Update frequencyEvery 8 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.011.0 — better
Further details — not scored
Size58 MB125 MB
Age rating12+17+
DeveloperPietro BertiniANESTESIARTE CALI SAS

In-app purchases

1 purchases

iElastance

Subscriptions1
  • iElastance Premium7 Days trial$9.991 Year
2 purchases

iTIVA Anesthesia Plus

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

Questions

Is iElastance free?
iElastance is free to download, with in-app purchases available.
Is iTIVA Anesthesia Plus free?
iTIVA Anesthesia Plus is free to download, with in-app purchases available.
Do iElastance or iTIVA Anesthesia Plus have ads?
Neither iElastance nor iTIVA Anesthesia Plus shows ads.
Which is updated more often, iElastance or iTIVA Anesthesia Plus?
iElastance ships an update every 8 months, and iTIVA Anesthesia Plus every 2 months. Most recently, iElastance was updated on October 30, 2026 and iTIVA Anesthesia Plus on October 29, 2026.

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