Comparison

AltFuelUS vs xHP Flashtool

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AltFuelUS

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
Read full description

Vehicle alternative fuel locations and mapping directions to those locations. Full United States coverage. A default filter can be set to any state or any category of fuel. A global filter can be set to produce stations within a user-defined radius of the user location. A global filter can be set to produce stations within a user-defined radius of a user-defined coordinate. Standard iOS search capability is available for filtering on the station name or city. Data for the fuel types of BioDiesel, Compressed Natural Gas, Ethanol(85), Electric, Hydrogen, Liquefied Natural Gas and Liquified Petroleum Gas are included. Any service location can be mapped by state or by a user-specified radius from the user location. Full data on the service location is shown as provided by the source. This can include service location name, location, type of fuel, hours, credit cards accepted, fuel-specific hardware and more. Data is provided by the US Department of Energy.

About

xHP Flashtool

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
Read full description

xHP Flashtool is the worldwide first and complete Tuning solution for your ZF6HP, ZF8HP Automatic or 7-Speed DCT transmission. xHP is the only tool that focuses fully on getting the best from your Auto-Transmission and is the worldwide leading solution for the best vehicles from Bavaria! xHP put's the power to fully customize your automatic transmission at your hands. Connect your Apple iPhone, IPad or Mac M1 to your car and customize by yourself or choose from pre-defined OTS maps. The ZF Autos are used throughout the whole range, from the 1-Series hatchbacks, to the mighty Alpina and M cars! While the hardware stays widely the same throughout all applications and is mainly divided in only 2 types (6HP19/21 and 6HP26/28 for 6-Speed, 8HP45/50/51 and 8HP70/75/76 for 8-Speed), the software inside the controller makes it possible to adapt the transmission, to every vehicle and mimic a wide range of driver styles. Smooth and comfy in the Luxury applications, the same transmission can be tweaked to deliver snap-on take-off behavior, surprisingly fast shift times and even race-style throttle blips on downshifts. Tweaking your transmission is not only about getting quicker, or holding more power. An automatic transmission is deeply involved into vehicle dynamics and contributes very much to the overall driving experience. From crawling in traffic, over city driving, to taking your vehicle to the drag strip or a race track, the TCU widely defines how your car feels. Like everyone drives different with a manual, the maps inside the TCU hide the secrets to tweak your automatic transmission to your personal likings and finally experience what was once promised in the glossy brochure: Sheer driving pleasure! For a seamless start, please read the manual on needed hardware and prerequisites: https://www.xhpflashtool.com To connect to your car, you have many options: xHP Wifi Adapter (blue), Wifi Thor Adapter, MHD Wifi Adapter (black and orange) or a standard OBD INPA USB or ENET cable! Please check our Connect-Diagram on our website to get further information and sources! https://www.xhpflashtool.com/connect_diagram/

Screenshots

AltFuelUS4 screens
xHP Flashtool4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

AltFuelUS ships an update every 13 months, xHP Flashtool weekly. The most recent releases landed on June 4, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 5 level
AltFuelUS versus xHP Flashtool: the parameters behind the verdict, then further details
ParameterAltFuelUSxHP Flashtool
Price$0.99Free — better
Rating4.0 (1 ratings)4.9 (2.7K ratings) — better
Positive reviews100.0% of reviews — better94.1% of reviews
Number of ratings12.7K — better
Update frequencyEvery 13 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size8 MB275 MB
Age rating4+4+
DeveloperJohn GrauelxAutomotive GmbH

Customer experience

AltFuelUS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

xHP Flashtool

All ratings2,714 ratings
Positive98.6%
Neutral0.4%
Negative1.0%
Written reviews270 reviews
Positive94.1%
Neutral0.0%
Negative5.9%

Bugs and requests

AltFuelUS

Not enough reviews yet to summarise bugs or requests.

xHP Flashtool

Reported bugs

2 issues
  • App crashes during reflash process
  • Inability to sign out of account with wrong email

Requested features

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

In-app purchases

None

AltFuelUS

No in-app purchases

None

xHP Flashtool

No in-app purchases

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 23, 2026.

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