# Aviation Fuel Calculator vs FDPMonitor

The clearest difference is price: FDPMonitor at Free against Aviation Fuel Calculator's $1.99. FDPMonitor also leads on update cadence (every 2 weeks vs every 15 months). Aviation Fuel Calculator's advantage is in-app purchases (none vs 1) and device support (4 vs 2). On ads there is nothing between them.

FDPMonitor is free to download; Aviation Fuel Calculator costs $1.99 up front. FDPMonitor sells 1 in-app purchase, starting at $7.99 per year. Aviation Fuel Calculator asks for nothing beyond the download.

Aviation Fuel Calculator ships an update every 15 months, FDPMonitor every 2 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Aviation Fuel Calculator | FDPMonitor |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aviation-fuel-calculator/id740516953/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 8 MB | 1 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Oswald](https://appshunter.io/developer/740516956) | [prodavam-nemovitost.cz, s.r.o.](https://appshunter.io/developer/1883668473) |

## What reviewers say

### Aviation Fuel Calculator

[App page](https://appshunter.io/ios/app/aviation-fuel-calculator/id740516953)

This utility app helps pilots, students, and ground crew quickly convert and calculate aircraft fuel. It supports various fuel types and units, works offline, and features a clean interface for efficient flight planning.

**Highlights:** Calculate uplift fuel, Supports Jet Fuel & Avgas, Converts Liters, Gallons, Kilograms, Pounds, Works offline, Intuitive interface

**Features:** Vision Pro support

**In-app purchases:** none


### FDPMonitor

[App page](https://appshunter.io/ios/app/fdpmonitor/id6760293326)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly | $7.99 | per year |


## Frequently asked questions

### Is Aviation Fuel Calculator free?

Aviation Fuel Calculator costs $1.99, with no in-app purchases.

### Is FDPMonitor free?

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

### Do Aviation Fuel Calculator or FDPMonitor have ads?

Neither Aviation Fuel Calculator nor FDPMonitor shows ads.

### Which is updated more often, Aviation Fuel Calculator or FDPMonitor?

Aviation Fuel Calculator ships an update every 15 months, and FDPMonitor every 2 weeks. Most recently, Aviation Fuel Calculator was updated on November 1, 2026 and FDPMonitor on October 31, 2026.

---

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