Comparison

iElastance vs Valve PPM

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

Head to head
About

iElastance

Features
Read full description

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

Valve PPM

This tool assists medical professionals in assessing implanted prosthetic cardiac valves. It offers guidance for checking existing valve function and selecting the optimal valve before implantation based on patient and prosthesis parameters.

Highlights
  • Assess implanted valve function
  • Select optimal valve before implantation
  • Analyze patient and prosthesis parameters
  • Identify potential patient-prosthesis mismatch
  • Determine intrinsic prosthesis dysfunction
Features
Read full description

Valve PPM is an innovative mobile tool developed to support echocardiography professionals in their effort of assessing the functionality of implanted prosthetic cardiac valves. The application provides guidelines for assessing an already implanted valve (Check Valve Function) and for choosing a valve before implantation (Optimal Valve Selector). The algorithms behind the App have been derived after an extensive research of the published materials on the aortic and mitral prosthetic valve assessment. - Check Valve Function After selecting a particular valve type, the patient characteristics (weight/height) and the prosthesis actual parameters (peak velocity, mean gradient, VTI prosthesis, VTI LVOT and LVOTd), Valve PPM will provide the user with an answer regarding the normal function of the valve, the potential patient prosthesis mismatch or the intrinsic prosthesis dysfunction. - Optimal Valve Selector The user will be required to select a valve position (aortic/mitral) and the patient characteristics (weight/height) and Valve PPM will instantly indicate the minimum Effective Orifice Area (EOA) in order to avoid Patient Prosthesis Mismatch (PPM).

Screenshots

iElastance4 screens
Valve PPM4 screens

Verdict

The call

The clearest difference is update cadence: Valve PPM at every 2 months against iElastance's every 8 months. iElastance's advantage is iOS requirement (13.0 vs 15.1). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iElastance ships an update every 8 months, Valve PPM every 2 months. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
iElastance versus Valve PPM: the parameters behind the verdict, then further details
ParameteriElastanceValve PPM
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 8 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size58 MB37 MB
Age rating12+12+
DeveloperPietro BertiniKRUTSCH

In-app purchases

None

iElastance

No in-app purchases

None

Valve PPM

No in-app purchases

Questions

Is iElastance free?
iElastance is free to download, with no in-app purchases.
Is Valve PPM free?
Valve PPM is free to download, with no in-app purchases.
Do iElastance or Valve PPM have ads?
Neither iElastance nor Valve PPM shows ads.
Which is updated more often, iElastance or Valve PPM?
iElastance ships an update every 8 months, and Valve PPM every 2 months. Most recently, iElastance was updated on October 21, 2026 and Valve PPM on October 8, 2026.

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