# smartMFD by Guardian Avionics vs Pressurisation

The clearest difference is rating: Pressurisation at 5.0 against smartMFD by Guardian Avionics's 3.7. Pressurisation also leads on in-app purchases (none vs 10). smartMFD by Guardian Avionics's advantage is device support (4 vs 2) and ratings volume (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. smartMFD by Guardian Avionics sells 10 in-app purchases, starting at $0.49 per 7 days. Pressurisation asks for nothing beyond the download.

Pressurisation holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

smartMFD by Guardian Avionics ships an update every 3 months, Pressurisation every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | smartMFD by Guardian Avionics | Pressurisation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/smartmfd-by-guardian-avionics/id599071174/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pressurisation/id956245284/reviews)** |
| Number of ratings | **3** | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 121 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Co guardian llc](https://appshunter.io/developer/599071177) | [Riccardo Arrigoni](https://appshunter.io/developer/956245283) |

## What reviewers say

### smartMFD by Guardian Avionics

[App page](https://appshunter.io/ios/app/smartmfd-by-guardian-avionics/id599071174)

This app transforms your mobile device into a multifunction display for aircraft, showing flight data, engine performance, and navigation charts. It records flight data for later analysis and provides alerts for carbon monoxide levels and pulse oximetry when connected to compatible hardware.

**Highlights:** Multifunction display (MFD), Flight data recording and analysis, Engine performance monitoring, VFR/IFR charts and approach plates, CO level alerts, Pulse oximeter readings

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plan 4 (Weekly) | $0.49 | per 7 days |
| Plan 1 (Monthly) | $9.99 | per month |
| Plan 3 (Monthly) | $12.99 | per month |
| Plan 4 (Monthly) | $24.99 | per month |
| Plan 5 (Monthly) | $29.99 | per month |
| Plan 1 (Yearly) | $99.99 | per year |
| Plan 2 (Yearly) | $149.99 | per year |
| Plan 3 (Yearly) | $199.99 | per year |
| Plan 4 (Yearly) | $249.99 | per year |
| Plan 5 (Yearly) | $299.99 | per year |


### Pressurisation

[App page](https://appshunter.io/ios/app/pressurisation/id956245284)

Visualize aircraft cabin pressurization with realistic cockpit instruments. Explore different aircraft types and monitor key metrics like cabin altitude and differential pressure. Ideal for aviation enthusiasts and students.

**Highlights:** Cockpit-style instrument displays, Multiple aircraft type modes, Cabin altitude monitoring, Differential pressure display, Cabin climb rate indicator, Ground speed display

**In-app purchases:** none


## Frequently asked questions

### Is smartMFD by Guardian Avionics free?

smartMFD by Guardian Avionics is free to download, with in-app purchases available.

### Is Pressurisation free?

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

### Which has better reviews, smartMFD by Guardian Avionics or Pressurisation?

Pressurisation is rated higher. smartMFD by Guardian Avionics averages 3.7 out of 5 from 3 ratings, while Pressurisation averages 5.0 from 1 ratings.

### Do smartMFD by Guardian Avionics or Pressurisation have ads?

Neither smartMFD by Guardian Avionics nor Pressurisation shows ads.

### Which is updated more often, smartMFD by Guardian Avionics or Pressurisation?

smartMFD by Guardian Avionics ships an update every 3 months, and Pressurisation every 2 months. Most recently, smartMFD by Guardian Avionics was updated on October 23, 2026 and Pressurisation on October 24, 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.*