Comparison

NGM Flasher vs KM eFlash

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

Head to head
About

NGM Flasher

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The revolution in vehicle tuning: The world's first app specifically for performance models from VW, Audi, SEAT, ล koda, and Porsche. Developed by engineers - made for true enthusiasts. In the exciting world of the automotive industry, innovations are constantly changing the experience we have with our cars. One of these groundbreaking developments from leading experts and tuning enthusiasts is this tuning app. This app opens up a whole new dimension for vehicle owners to optimize their car's performance, transmission, and sound. Using advanced algorithms and real-time data, we can easily optimize the engine and transmission control unit for improved performance, shifting, efficiency, and sound. Users can customize their engine's performance, creating a customized driving experience. Safety and reliability are our top priority. The developers have implemented various safety features to ensure that the changes do not affect the functionality or safety of the vehicle. Regular updates ensure that the app keeps pace with the latest vehicle models and technological developments. After purchasing the app license and the OBD adapter, plug the adapter into the car's OBD port. Then, connect the iPhone/iPad to the OBD adapter/car. The first flash process takes 20-25 minutes. After that, each flash process takes only 2-3 minutes to switch between the vehicle's original power and all other available power levels, transmission variants, and sound configurations. This creates a unique and exciting experience for the driver! Supported engines: - EA888 gen3 / gen4 - EA855(evo) - EA824 (4.0 TFSI, 5.2 FSI) - EA825 (4.0 TFSI) - EA839 (2.9 / 3.0 TFSI) A complete list of supported vehicles can be found on our website. www.ngmapp.com

About

KM eFlash

Features
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KM eFlash makes vehicle diagnostics and ECU programming simple and efficient. Use the specially developed KM eFlash OBD2 dongle directly from your smartphone to: * Read, analyze, and clear diagnostic trouble codes (DTCs) * Flash engine and transmission control units * Display and record real-time telemetry data The connection is established conveniently via Wi-Fi, ensuring fast and reliable data transmission. The app can only be used with the KM eFlash OBD2 dongle and a valid user account. For more information, visit: https://www.km-tuning.com

Screenshots

NGM Flasher4 screens
KM eFlash4 screens

Verdict

The call

The clearest difference is update cadence: KM eFlash at every 3 days against NGM Flasher's weekly. KM eFlash also leads on iOS requirement (16.4 vs 26.0). On price, ads, in-app purchases and device support 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

NGM Flasher ships an update weekly, KM eFlash every 3 days. The most recent releases landed on September 19, 2026 and September 13, 2026 respectively.

Scorecard2 real differences ยท 4 level
NGM Flasher versus KM eFlash: the parameters behind the verdict, then further details
ParameterNGM FlasherKM eFlash
PriceFreeFree
Update frequencyWeeklyEvery 3 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS26.016.4 โ€” better
Further details โ€” not scored
Size23 MB52 MB
Age rating4+4+
DeveloperNGM App GmbHKM Engineers GmbH

In-app purchases

None

NGM Flasher

No in-app purchases

None

KM eFlash

No in-app purchases

Questions

Is NGM Flasher free?
NGM Flasher is free to download, with no in-app purchases.
Is KM eFlash free?
KM eFlash is free to download, with no in-app purchases.
Do NGM Flasher or KM eFlash have ads?
Neither NGM Flasher nor KM eFlash shows ads.
Which is updated more often, NGM Flasher or KM eFlash?
NGM Flasher ships an update weekly, and KM eFlash every 3 days. Most recently, NGM Flasher was updated on September 19, 2026 and KM eFlash on September 13, 2026.

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