# ETCO2 Tutor vs Rapid Vent Calculator

The clearest difference is ratings volume: Rapid Vent Calculator at 47 against ETCO2 Tutor's 2. ETCO2 Tutor's advantage is iOS requirement (7.0 vs 13.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. 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 ETCO2 Tutor against 5.0 for Rapid Vent Calculator. That said, the two scores are not equally well evidenced: Rapid Vent Calculator has 47 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

ETCO2 Tutor ships an update every 5 months, Rapid Vent Calculator every 4 months. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ETCO2 Tutor | Rapid Vent Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/etco2-tutor/id1047646888/reviews) | [5.0 (47 ratings)](https://appshunter.io/ios/app/rapid-vent-calculator/id6451494244/reviews) |
| Number of ratings | 2 | **47** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 33 MB | 48 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Satish Deopujari](https://appshunter.io/developer/1180072702) | [JENCO LLC](https://appshunter.io/developer/1698545004) |

## What reviewers say

### ETCO2 Tutor

[App page](https://appshunter.io/ios/app/etco2-tutor/id1047646888)

Learn about End-tidal CO2 (ETCO2) and its significance in monitoring patient respiration. This app visualizes ETCO2 graphs for various conditions like apnea, hyperventilation, and hypoventilation, aiding in understanding capnography.

**Highlights:** ETCO2 monitoring explanation, Capnography and capnograph details, Apnea graph visualization, Hyperventilation graph visualization, Hypoventilation graph visualization, Graphs for various medical conditions

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

**In-app purchases:** none


### Rapid Vent Calculator

[App page](https://appshunter.io/ios/app/rapid-vent-calculator/id6451494244)

This medical app assists healthcare professionals in calculating essential ventilator settings and medication dosages for critical care. It provides rapid, accurate results for paramedics, respiratory therapists, nurses, and doctors, streamlining patient management.

**Highlights:** Effortless ventilator settings calculation, Rapid results for quick decision-making, RSI medication dosage assistant, User-friendly interface for medical professionals, Accurate patient parameter input

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

**In-app purchases:** none


## Frequently asked questions

### Is ETCO2 Tutor free?

ETCO2 Tutor is free to download, with no in-app purchases.

### Is Rapid Vent Calculator free?

Rapid Vent Calculator is free to download, with no in-app purchases.

### Which has better reviews, ETCO2 Tutor or Rapid Vent Calculator?

ETCO2 Tutor and Rapid Vent Calculator are both rated 5.0 out of 5 on the App Store, from 2 and 47 ratings respectively.

### Do ETCO2 Tutor or Rapid Vent Calculator have ads?

Neither ETCO2 Tutor nor Rapid Vent Calculator shows ads.

### Which is updated more often, ETCO2 Tutor or Rapid Vent Calculator?

ETCO2 Tutor ships an update every 5 months, and Rapid Vent Calculator every 4 months. Most recently, ETCO2 Tutor was updated on October 4, 2026 and Rapid Vent Calculator on October 7, 2026.

---

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