Comparison

Gt vs Diesel+

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

Head to head
About

Gt

This application enables users to log and configure modern engine and gearbox management systems. It utilizes the UDS protocol over OBD II with open-source OBD BLE devices. The app supports programming recovery for most platforms if a configuration procedure is interrupted.

Highlights
  • Log engine management systems
  • Configure gearbox management systems
  • UDS protocol support
  • OBD II connectivity
  • Open source OBD BLE device compatibility
  • Programming recovery feature
Read full description

Application that allows users log and configure modern Engine and Gearbox management systems using the UDS protocol over OBD II using various open source OBD BLE devices. Our application supports programming recovery on most supported platforms if the configuration procedure is interrupted. You can restart the procedure if the previous attempt has failed.

About

Diesel+

Read full description

Diesel+ is the ultimate app for owners of Volkswagen Group and BMW diesel vehicles who want to get the most out of their vehicle. With just a few clicks, you can take your car's performance to new levels - right from your iPhone. Performance increase at manufacturer level: Our technology meets the highest quality standards and is fully developed and tested on the respective vehicle. Our application engineers from the automotive industry have the necessary experience and know-how to offer safe and uncompromising performance enhancement.

Screenshots

Gt4 screens
Diesel+2 screens

Verdict

The call

The clearest difference is iOS requirement: Gt at 17.4 against Diesel+'s 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 19, 2026 and September 2, 2026 respectively.

Scorecard1 real difference ยท 7 level
Gt versus Diesel+: the parameters behind the verdict, then further details
ParameterGtDiesel+
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.4 โ€” better26.0
Further details โ€” not scored
Size55 MB16 MB
Age rating4+4+
DeveloperAthanasios FarmakisTPE Europe GmbH

In-app purchases

None

Gt

No in-app purchases

None

Diesel+

No in-app purchases

Questions

Is Gt free?
Gt is free to download, with no in-app purchases.
Is Diesel+ free?
Diesel+ is free to download, with no in-app purchases.
Do Gt or Diesel+ have ads?
Neither Gt nor Diesel+ shows ads.
Which is updated more often, Gt or Diesel+?
Gt ships an update weekly, and Diesel+ weekly. Most recently, Gt was updated on September 19, 2026 and Diesel+ on September 2, 2026.

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