Comparison

xHP Flashtool vs GraphiKai

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

Head to head
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/

About

GraphiKai

Features
Read full description

Graphi-Kai is a lightweight app to track what you’re watching and what you plan to watch, with clear charts and customizable themes.

Screenshots

xHP Flashtool4 screens
GraphiKai4 screens

Verdict

The call

The clearest difference is in-app purchases: xHP Flashtool at none against GraphiKai's 1. xHP Flashtool also leads on update cadence (weekly vs every 4 weeks). On price, ads, device support and iOS requirement 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

Both are free to download. GraphiKai sells 1 one-off in-app purchase. xHP Flashtool asks for nothing beyond the download.

UpkeepUpdate frequency

xHP Flashtool ships an update weekly, GraphiKai every 4 weeks. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
xHP Flashtool versus GraphiKai: the parameters behind the verdict, then further details
ParameterxHP FlashtoolGraphiKai
PriceFreeFree
Rating4.9 (2.7K ratings) — better—
Positive reviews93.5% of reviews—
Number of ratings2.7K — better—
Update frequencyWeekly — betterEvery 4 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size276 MB39 MB
Age rating4+4+
DeveloperxAutomotive GmbHIbrahim Zaougui

Bugs and 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

GraphiKai

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

xHP Flashtool

No in-app purchases

1 purchases

GraphiKai

One-time1
  • Themes$4.99

Questions

Is xHP Flashtool free?
xHP Flashtool is free to download, with no in-app purchases.
Is GraphiKai free?
GraphiKai is free to download, with in-app purchases available.
Do xHP Flashtool or GraphiKai have ads?
Neither xHP Flashtool nor GraphiKai shows ads.
Which is updated more often, xHP Flashtool or GraphiKai?
xHP Flashtool ships an update weekly, and GraphiKai every 4 weeks. Most recently, xHP Flashtool was updated on October 13, 2026 and GraphiKai on October 7, 2026.

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