# Rotax Global vs Fox + Son Jetmax

The clearest difference is review sentiment: Fox + Son Jetmax at 100% against Rotax Global's 0%. Fox + Son Jetmax also leads on rating (5.0 vs 2.0). Rotax Global's advantage is in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Fox + Son Jetmax sells 1 in-app purchase, starting at $7.99 per year. Rotax Global asks for nothing beyond the download.

Fox + Son Jetmax holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 0% of Rotax Global's written reviews are positive against 100% of Fox + Son Jetmax's.

Rotax Global ships an update every 5 weeks, Fox + Son Jetmax every 3 months. The most recent releases landed on October 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Rotax Global | Fox + Son Jetmax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/rotax-global/id1298634783/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fox-plus-son-jetmax/id6748326003/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | **Free** | Subscription |
| Size | 16 MB | 16 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BRP-Rotax GmbH & Co KG](https://appshunter.io/developer/1152315346) | [Trophy Inc.](https://appshunter.io/developer/1752591571) |

## What reviewers say

### Rotax Global

[App page](https://appshunter.io/ios/app/rotax-global/id1298634783)

This app offers comprehensive information for the Rotax Max Challenge Grand Finals. Users can access live timing, race updates, driver notifications, and track details. It also provides essential event information like schedules, regulations, and local amenities.

**Highlights:** Live Timing and Results, Live Streaming, Race Updates, Driver Notifications, Track Information, Event Schedule, Regulations and Info

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

**In-app purchases:** none


### Fox + Son Jetmax

[App page](https://appshunter.io/ios/app/fox-plus-son-jetmax/id6748326003)

This application simplifies jetting calculations for Rotax engines, factoring in weather and altitude. It provides racers with precise tuning recommendations, including relative horsepower and an interactive gear chart, to optimize performance on race day.

**Highlights:** Rotax engine jetting calculator, Weather and altitude adjustments, Relative horsepower calculation, Interactive gear chart, Rotax tuning tips

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Rotax Global free?

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

### Is Fox + Son Jetmax free?

Fox + Son Jetmax is free to download, with in-app purchases available.

### Which has better reviews, Rotax Global or Fox + Son Jetmax?

Fox + Son Jetmax is rated higher. Rotax Global averages 2.0 out of 5 from 4 ratings, while Fox + Son Jetmax averages 5.0 from 2 ratings.

### Do Rotax Global or Fox + Son Jetmax have ads?

Neither Rotax Global nor Fox + Son Jetmax shows ads.

### Which is updated more often, Rotax Global or Fox + Son Jetmax?

Rotax Global ships an update every 5 weeks, and Fox + Son Jetmax every 3 months. Most recently, Rotax Global was updated on October 24, 2026 and Fox + Son Jetmax on September 23, 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.*