# AltFuelUS vs xHP Flashtool

The clearest difference is price: xHP Flashtool at Free against AltFuelUS's $0.99. xHP Flashtool also leads on rating (4.9 vs 4.0) and update cadence (weekly vs every 13 months). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

xHP Flashtool is free to download; AltFuelUS costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

xHP Flashtool holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: xHP Flashtool has 2.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of AltFuelUS's written reviews are positive against 94% of xHP Flashtool's, so the app with the better star average is not the one people write more warmly about.

AltFuelUS ships an update every 13 months, xHP Flashtool weekly. The most recent releases landed on June 4, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | AltFuelUS | xHP Flashtool |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/altfuelus/id1230583921/reviews) | **[4.9 (2.7K ratings)](https://appshunter.io/ios/app/xhp-flashtool/id1475112461/reviews)** |
| Number of ratings | 1 | **2.7K** |
| Positive reviews | **100.0% of reviews** | 94.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 8 MB | 275 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [John Grauel](https://appshunter.io/developer/734191840) | [xAutomotive GmbH](https://appshunter.io/developer/1471996796) |

## What reviewers say

### AltFuelUS

[App page](https://appshunter.io/ios/app/altfuelus/id1230583921)

Find alternative fuel stations across the US with detailed mapping and directions. Filter by fuel type, state, or radius. View comprehensive service location data including hours and payment options.

**Highlights:** Alternative fuel station locator, Mapping and directions, Filter by fuel type, Radius-based search, Station details (hours, payment), US-wide coverage

**Features:** macOS Compatibility

**In-app purchases:** none


### xHP Flashtool

[App page](https://appshunter.io/ios/app/xhp-flashtool/id1475112461)

This app offers a complete tuning solution for ZF automatic and DCT transmissions. It allows users to customize their transmission's behavior, from smooth and comfortable to race-ready performance, directly from their Apple devices. Unlock the full potential of your vehicle's transmission.

**Highlights:** ZF transmission tuning, Customizable shift behavior, OTS map selection, DCT transmission support, iOS/iPadOS/Mac M1 compatibility, Multiple adapter options

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Improved performance and responsiveness
- 👍 Easy to use and customize
- 🔧 Excellent customer support
- 💥 Significant driving experience enhancement
- 🏎️ Faster and more responsive shifts

**What reviewers complain about**

- 🐛 Occasional connection issues
- 🔍 Compatibility concerns with newer vehicles
- 💰 Perceived high cost of license

**Reported bugs**

- App crashes during reflash process
- Inability to sign out of account with wrong email

**Requested features**

- Expand compatibility to more vehicle models
- Offer more affordable licensing options
- Implement demo/trial mode for potential users


## Frequently asked questions

### Is AltFuelUS free?

AltFuelUS costs $0.99, with no in-app purchases.

### Is xHP Flashtool free?

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

### Which has better reviews, AltFuelUS or xHP Flashtool?

xHP Flashtool is rated higher. AltFuelUS averages 4.0 out of 5 from 1 ratings, while xHP Flashtool averages 4.9 from 2.7K ratings.

### Do AltFuelUS or xHP Flashtool have ads?

Neither AltFuelUS nor xHP Flashtool shows ads.

### Which is updated more often, AltFuelUS or xHP Flashtool?

AltFuelUS ships an update every 13 months, and xHP Flashtool weekly. Most recently, AltFuelUS was updated on June 4, 2026 and xHP Flashtool on September 28, 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.*