# TC3Sim vs Rapid Vent Calculator

The clearest difference is review sentiment: Rapid Vent Calculator at 100% against TC3Sim's 0%. Rapid Vent Calculator also leads on rating (5.0 vs 4.0) and update cadence (every 4 months vs every 20 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rapid Vent Calculator holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Rapid Vent Calculator has 47 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of TC3Sim's written reviews are positive against 100% of Rapid Vent Calculator's.

TC3Sim ships an update every 20 months, Rapid Vent Calculator every 4 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TC3Sim | Rapid Vent Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/tc3sim/id1517825914/reviews) | **[5.0 (47 ratings)](https://appshunter.io/ios/app/rapid-vent-calculator/id6451494244/reviews)** |
| Number of ratings | 4 | **47** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 613 MB | 48 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Engineering & Computer Simulations Inc](https://appshunter.io/developer/1115288881) | [JENCO LLC](https://appshunter.io/developer/1698545004) |

## What reviewers say

### TC3Sim

[App page](https://appshunter.io/ios/app/tc3sim/id1517825914)

This medical simulation game reinforces tactical combat casualty care training through story-driven scenarios. Players assess casualties, perform triage, and administer treatments in various combat environments, learning essential procedures for military medical personnel.

**Highlights:** Tactical Combat Casualty Care training, Story-driven scenarios, Casualty assessment, Triage and treatment, Multiple military branches, Combat environments

**Features:** macOS Compatibility

**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 TC3Sim free?

TC3Sim 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, TC3Sim or Rapid Vent Calculator?

Rapid Vent Calculator is rated higher. TC3Sim averages 4.0 out of 5 from 4 ratings, while Rapid Vent Calculator averages 5.0 from 47 ratings.

### Do TC3Sim or Rapid Vent Calculator have ads?

Neither TC3Sim nor Rapid Vent Calculator shows ads.

### Which is updated more often, TC3Sim or Rapid Vent Calculator?

TC3Sim ships an update every 20 months, and Rapid Vent Calculator every 4 months. Most recently, TC3Sim was updated on October 24, 2026 and Rapid Vent Calculator on October 7, 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.*