iElastance vs Nerbio iTOF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iElastance
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iElastance is an application designed for calculate Ventricular Elastance, Arterial Elastance and Ventricular-Arterial Coupling using Echocardiographic derived values in a single beat determination. This application is extremely useful to a variety of health care givers such as Cardiologists, Intensivists, Anesthesiologist and more who want to calculate ventricular arterial coupling even in the Critical Care setting and, above all, bedside. The variables needed for the calculator to work are: Systolic Blood Pressure (mmHg) Diastolic Blood Pressure (mmHg) Stroke Volume (ml) Ejection Fraction (%) Pre Ejection Time (msec) Total Ejection Time (msec) Formulas are validated and extracted from the article by Chen CH et Al J Am Coll Cardiol. 2001 Dec;38(7):2028-34. DISCLAIMER: The calculator provided is not meant to be a substitute for professional advice and is not to be used for medical diagnosis. Extensive effort has been exerted to make this software as accurate as possible; however the accuracy of information provided by this software cannot be guaranteed. Health care professionals should use clinical judjement and individualize therapy to each patient care situation. All rights reserved - 2024 Pietro Bertini
Nerbio iTOF
This medical application works with a specific device to provide quantitative monitoring of neuromuscular blocking agents. It enhances patient safety and accuracy in monitoring, offering wireless control for caregivers. The system is recommended by anesthesiologists for precise neuromuscular transmission monitoring.
- Quantitative neuromuscular transmission monitoring
- Works with iTOF device hardware
- Remote patient monitoring
- Wireless control for caregivers
- Automated quantitative monitoring
- FDA cleared
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Nerbio’s iTOF® app works with the iTOF device; an FDA cleared, quantitative neuromuscular transmission (NMT) monitor for remote monitoring of neuromuscular blocking agents (NMBAs). The iTOF app is designed to make patient monitoring safer, easier to use, and more accurate than ever. The iTOF is the first mobile device-managed, quantitative monitor of NMBAs. The combination of the app and Bluetooth-connected stimulator device allows precise, automated quantitative monitoring of the level of neuromuscular block. Wireless control also improves caregiver safety while maintaining a high-level of patient care. The iTOF system is recommended by leading anesthesiologists and used around the world for accurate NMBA monitoring. ------------------------------- NOTE: This app requires the iTOF device hardware to perform monitoring. Contact nerbio.com for information. iTOF is a registered trademark of Nerbio Medical Software Platforms, Inc. San Jose, California USA. ------------------------------- NOTE: Nerbio’s iTOF is authorized for use in the following countries: USA CHILE COLOMBIA INDIA -------------------------------
Screenshots
Verdict
The clearest difference is update cadence: Nerbio iTOF at every 2 months against iElastance's every 8 months. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iElastance ships an update every 8 months, Nerbio iTOF every 2 months. The most recent releases landed on May 17, 2026 and September 10, 2026 respectively.
| Parameter | iElastance | Nerbio iTOF |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 22 MB | 87 MB |
| Age rating | 12+ | 17+ |
| Developer | Pietro Bertini | Nerbio Medical Software Platform Inc |
In-app purchases
iElastance
No in-app purchases
Nerbio iTOF
No in-app purchases





