# smartMFD by Guardian Avionics vs QR Code Reader & Level

The clearest difference is in-app purchases: QR Code Reader & Level at none against smartMFD by Guardian Avionics's 10. smartMFD by Guardian Avionics's advantage is ads (none vs shown) and device support (4 vs 2). On price 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. QR Code Reader & Level asks for nothing beyond the download.

## The numbers

| Metric | smartMFD by Guardian Avionics | QR Code Reader & Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/smartmfd-by-guardian-avionics/id599071174/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 121 MB | 6 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) | [mitsunori oishi](https://appshunter.io/developer/905649994) |

## 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 |


### QR Code Reader & Level

[App page](https://appshunter.io/ios/app/qr-code-reader-and-level/id6727004960)

**Features:** macOS Compatibility

**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 QR Code Reader & Level free?

QR Code Reader & Level is free to download, with no in-app purchases.

### Do smartMFD by Guardian Avionics or QR Code Reader & Level have ads?

QR Code Reader & Level shows ads; smartMFD by Guardian Avionics does not.

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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.*