# fuelTool vs AviCalc

The clearest difference is update cadence: AviCalc at every 3 weeks against fuelTool's every 3 months. fuelTool's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

fuelTool ships an update every 3 months, AviCalc every 3 weeks. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | fuelTool | AviCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fueltool/id455651049/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 9 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Martin Groesbeek](https://appshunter.io/developer/455651052) | [Aldo Mendes Martins](https://appshunter.io/developer/377344895) |

## What reviewers say

### fuelTool

[App page](https://appshunter.io/ios/app/fueltool/id455651049)

This aviation tool simplifies fuel uplift and weight calculations, allowing users to determine limiting mass, allowable fuel, or payload. It supports various unit conversions and can store aircraft data for faster calculations.

**Highlights:** Fuel uplift calculation (LBS/KG to LTR), Split fuel calculation for left & right tanks, Weight calculation for limiting mass, fuel, or payload, Crosswind calculation with METAR data, Aircraft data management (add, edit, delete), Downloadable company aircraft data

**Features:** macOS Compatibility

**In-app purchases:** none


### AviCalc

[App page](https://appshunter.io/ios/app/avicalc/id6474237308)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is fuelTool free?

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

### Is AviCalc free?

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

### Do fuelTool or AviCalc have ads?

Neither fuelTool nor AviCalc shows ads.

### Which is updated more often, fuelTool or AviCalc?

fuelTool ships an update every 3 months, and AviCalc every 3 weeks. Most recently, fuelTool was updated on November 1, 2026 and AviCalc on November 4, 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.*