# LF Ventilator Protocol vs RTB2

The clearest difference is rating: RTB2 at 5.0 against LF Ventilator Protocol's 4.0. LF Ventilator Protocol's advantage is in-app purchases (none vs 1) and iOS requirement (8.0 vs 15.1). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. RTB2 sells 1 in-app purchase, starting at $2.99 per month. LF Ventilator Protocol asks for nothing beyond the download.

RTB2 holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

## The numbers

| Metric | LF Ventilator Protocol | RTB2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/lf-ventilator-protocol/id1474285747/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rtb2-respiratory-reference/id6757658847/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | **Free** | Freemium |
| Size | 112 MB | 46 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Intermountain Healthcare, Inc](https://appshunter.io/developer/845396410) | [Bbytetechworks LLC](https://appshunter.io/developer/1844731958) |

## What reviewers say

### LF Ventilator Protocol

[App page](https://appshunter.io/ios/app/lf-ventilator-protocol/id1474285747)

This medical calculator helps healthcare professionals quickly determine VR values for patient care. It eliminates manual errors by calculating based on patient gender, height, tidal volume, and protocol, speeding up treatment.

**Highlights:** VR value calculation, Patient gender input, Height input, Tidal volume input, Protocol-based calculation, Error elimination

**In-app purchases:** none


### RTB2

[App page](https://appshunter.io/ios/app/rtb2-respiratory-reference/id6757658847)

This medical reference app provides respiratory therapists and students with essential clinical tools. It features ventilator mode guides, therapy calculators, and oxygen guidance in a clean, organized format for quick access in critical care settings.

**Highlights:** Ventilator mode reference guides, Respiratory therapy clinical calculators, Oxygen device guidance, Structured respiratory care information, Fast clinical review format, Advanced calculators (Pro)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RTB2 Pro | $2.99 | per month |


## Frequently asked questions

### Is LF Ventilator Protocol free?

LF Ventilator Protocol is free to download, with no in-app purchases.

### Is RTB2 free?

RTB2 is free to download, with in-app purchases available.

### Which has better reviews, LF Ventilator Protocol or RTB2?

RTB2 is rated higher. LF Ventilator Protocol averages 4.0 out of 5 from 1 ratings, while RTB2 averages 5.0 from 2 ratings.

### Do LF Ventilator Protocol or RTB2 have ads?

Neither LF Ventilator Protocol nor RTB2 shows ads.

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