# AvioFuel vs GT Max

The clearest difference is price: GT Max at Free against AvioFuel's $3.99. GT Max also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On update cadence, ads and in-app purchases there is nothing between them.

GT Max is free to download; AvioFuel costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AvioFuel ships an update every 13 months, GT Max every 10 months. The most recent releases landed on October 30, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | AvioFuel | GT Max |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[3.7 (7 ratings)](https://appshunter.io/ios/app/aviofuel/id471271711/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 10 months** |
| Monetization | Paid | — |
| Size | 1 MB | 38 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Aviobot Factory](https://appshunter.io/developer/471271714) | [MACNIL Gruppo ZUCCHETTI](https://appshunter.io/developer/975483908) |

## What reviewers say

### AvioFuel

[App page](https://appshunter.io/ios/app/aviofuel/id471271711)

This aviation utility calculates fuel loading and payload for small turbine aircraft. It helps detect overweight conditions and provides quick, precise refuel calculations with customizable aircraft profiles and real-time updates.

**Highlights:** Fuel loading and payload calculation, Overweight condition detection, Customizable aircraft database, Real-time calculation updates, Multiple fuel input methods, Unit conversions

**Features:** Vision Pro support

**In-app purchases:** none


### GT Max

[App page](https://appshunter.io/ios/app/gt-max/id6736903082)

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

**In-app purchases:** none


## Frequently asked questions

### Is AvioFuel free?

AvioFuel costs $3.99, with no in-app purchases.

### Is GT Max free?

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

### Do AvioFuel or GT Max have ads?

Neither AvioFuel nor GT Max shows ads.

### Which is updated more often, AvioFuel or GT Max?

AvioFuel ships an update every 13 months, and GT Max every 10 months. Most recently, AvioFuel was updated on October 30, 2026 and GT Max on October 3, 2026.

---

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