# VentXplorer vs RTB2

The clearest difference is in-app purchases: VentXplorer at none against RTB2's 1. RTB2's advantage is update cadence (every 5 days vs monthly) and iOS requirement (15.1 vs 17.6). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for VentXplorer against 5.0 for RTB2. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

VentXplorer ships an update monthly, RTB2 every 5 days. Both last shipped on September 26, 2026.

## The numbers

| Metric | VentXplorer | RTB2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/ventxplorer/id6747533157/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/rtb2-respiratory-reference/id6757658847/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Size | 6 MB | 46 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Michael Brockman](https://appshunter.io/developer/1212422162) | [Bbytetechworks LLC](https://appshunter.io/developer/1844731958) |

## What reviewers say

### VentXplorer

[App page](https://appshunter.io/ios/app/ventxplorer/id6747533157)

A comprehensive learning tool for healthcare professionals to understand mechanical ventilation. It offers interactive waveform graphics and evidence-informed explanations to master ventilator concepts, modes, and troubleshooting. Study anytime, anywhere with offline access and a privacy-first design.

**Highlights:** Interactive waveform visualization, Educational modules on ventilation, Troubleshooting guides for common patterns, Offline access for study, Privacy-first design with no data tracking

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

**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 VentXplorer free?

VentXplorer 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, VentXplorer or RTB2?

VentXplorer and RTB2 are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do VentXplorer or RTB2 have ads?

Neither VentXplorer nor RTB2 shows ads.

### Which is updated more often, VentXplorer or RTB2?

VentXplorer ships an update monthly, and RTB2 every 5 days. Most recently, VentXplorer was updated on September 26, 2026 and RTB2 on September 26, 2026.

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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.*