# smartMFD by Guardian Avionics vs RRRemember

The clearest difference is update cadence: RRRemember at every 5 days against smartMFD by Guardian Avionics's every 3 months. smartMFD by Guardian Avionics's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model 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 and RRRemember sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

smartMFD by Guardian Avionics ships an update every 3 months, RRRemember every 5 days. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | smartMFD by Guardian Avionics | RRRemember |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/smartmfd-by-guardian-avionics/id599071174/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 121 MB | 33 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) | [洪跃 管](https://appshunter.io/developer/1363417345) |

## 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 |


### RRRemember

[App page](https://appshunter.io/ios/app/rrremember/id6479942350)

Record important days with a simple design and delicate experience. Track past days or days remaining with a simulated paper flipping effect. Decorate entries with theme icons and use widgets for quick access.

**Highlights:** Record important days, Track days passed or remaining, Simulated paper flipping experience, Theme icons for decoration, Widgets and standby components, Timeline function

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Storage | $0.99 | one-time |
| All Themes and Icons | $1.99 | one-time |
| One-time Purchase | $2.99 | one-time |
| All Widget Functions | $2.99 | one-time |


## Frequently asked questions

### Is smartMFD by Guardian Avionics free?

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

### Is RRRemember free?

RRRemember is free to download, with in-app purchases available.

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

Neither smartMFD by Guardian Avionics nor RRRemember shows ads.

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

smartMFD by Guardian Avionics ships an update every 3 months, and RRRemember every 5 days. Most recently, smartMFD by Guardian Avionics was updated on October 11, 2026 and RRRemember on October 5, 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.*