# Double Lumen vs Nerbio iTOF

The clearest difference is price: Nerbio iTOF at Free against Double Lumen's $4.99. Double Lumen's advantage is iOS requirement (9.0 vs 15.6). On rating, ratings volume, update cadence and ads there is nothing between them.

Nerbio iTOF is free to download; Double Lumen costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Double Lumen against 5.0 for Nerbio iTOF. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

Double Lumen ships an update every 3 months, Nerbio iTOF every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Double Lumen | Nerbio iTOF |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/double-lumen/id459376323/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/nerbio-itof/id1525979662/reviews) |
| Number of ratings | **8** | 3 |
| Positive reviews | 94.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 88 MB | 87 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Crystal Clear Solutions](https://appshunter.io/developer/444062170) | [Nerbio Medical Software Platform Inc](https://appshunter.io/developer/1525979664) |

## What reviewers say

### Double Lumen

[App page](https://appshunter.io/ios/app/double-lumen/id459376323)

This application simulates the placement of double lumen endotracheal tubes and bronchial blockers. It provides real bronchoscopy images and interactive simulations to help users learn and confirm correct positioning in a stress-free environment.

**Highlights:** Double lumen and bronchial blocker simulation, Real bronchoscopy video images, Interactive placement and confirmation, Basic teaching program, 10 detailed simulations, Left-sided DLT positioning guidance

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Nerbio iTOF

[App page](https://appshunter.io/ios/app/nerbio-itof/id1525979662)

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.

**Highlights:** Quantitative neuromuscular transmission monitoring, Works with iTOF device hardware, Remote patient monitoring, Wireless control for caregivers, Automated quantitative monitoring, FDA cleared

**In-app purchases:** none


## Frequently asked questions

### Is Double Lumen free?

Double Lumen costs $4.99, with no in-app purchases.

### Is Nerbio iTOF free?

Nerbio iTOF is free to download, with no in-app purchases.

### Which has better reviews, Double Lumen or Nerbio iTOF?

Double Lumen and Nerbio iTOF are both rated 5.0 out of 5 on the App Store, from 8 and 3 ratings respectively.

### Do Double Lumen or Nerbio iTOF have ads?

Neither Double Lumen nor Nerbio iTOF shows ads.

### Which is updated more often, Double Lumen or Nerbio iTOF?

Double Lumen ships an update every 3 months, and Nerbio iTOF every 2 months. Most recently, Double Lumen was updated on November 6, 2026 and Nerbio iTOF on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*