Comparison

My Flasher US vs D

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

Head to head
About

My Flasher US

This app allows users to tune and optimize their car's ECU through a connected plug-in dongle. It offers features like reading/writing ECU data, seamless dealer communication, and automatic vehicle identification for a personalized tuning experience.

Highlights
  • Read & Write ECU Data
  • Seamless Dealer Communication
  • Automatic Vehicle Identification
  • Secure and Easy-to-Use Interface
  • ECU Tuning and Optimization
Features
Read full description

Unlock Your Car’s Full Potential with Our Smart Tuning App! Our mobile application works seamlessly with a plug-in dongle that connects to your car’s ECU, giving you complete control over your vehicle’s tuning and optimization. Key Features: - Read & Write ECU Data – Connect to the dongle and access your car’s ECU effortlessly - Seamless Dealer Communication – Exchange read and modified files with your dealer directly through the app - Automatic Vehicle Identification – Instantly detect your car’s manufacturer, model, version, and engine for a tailored experience - Secure & Easy-to-Use – Designed for everyone, from beginners to professionals, ensuring a safe and hassle-free tuning experience. Enhance your driving experience with precision tuning – Download now and take control of your vehicle!

About

D

Read full description

D-SYNC ECU is the ultimate calibration platform for Mercedes-AMG and Mercedes-Benz owners who demand more from their vehicles. Unlock your car's full potential — D-SYNC delivers a seamless, wireless tuning experience straight from your phone. No laptop, no cables, no dealer. SUPPORTED ENGINES • M177 4.0L V8 BiTurbo — C63 S, E63 S, S63, GT 63 S, GLE 63 S, GLC 63 S, and more • M178 4.0L V8 BiTurbo — AMG GT / GT S / GT C / GT R / Black Series • M276 3.0L V6 BiTurbo — C43, E43, E450, GLC43, GLE43, S400, and more • M157 / M278 5.5L & 4.7L V8 BiTurbo — S63, CLS63, GLE63, GLS63, ML63, E63, and more • M133 2.0L Turbo — CLA45, A45, GLA45 (Gen 1 / 1.5) • M256 3.0L Turbo inline-six — E53, CLS53, GT53, GLE53 and 450 models PLUS TRANSMISSION TUNING AND CPC TUNING • 9G-TRONIC (VGS-NAG3) — write calibrations directly to the 9-speed transmission controller • CPC NG - write customized calibrations to a replaced CPC NG module. Compatible control units: Bosch MED17.7.5 · MED17.7 V6LA · MED40AMG · MED17.7 (M157/M278) · Bosch MG1 (M256) · VGS-NAG3 (9G) · CPCNG HIGH-SPEED DATA LOGGING • Ready-made logging presets per engine, plus build-your-own profiles (up to 20 channels) • Boost, intake temps, knock, AFR/lambda, timing and 70+ parameters in real time • Auto-records your pull and saves it as a CSV tagged by VIN, date and time • Powerful viewer — multi-channel overlay, drag-to-read cursor, time-axis zoom and stacked view • One-tap cloud sharing so your tuner can refine the calibration LIVE HUD Turn your phone into a full-screen instrument cluster while you log. Big, glanceable gauges with per-cylinder knock and misfire, camshaft timing, and automatic over-limit alerts — portrait or landscape, with dedicated layouts per engine. Display only: it never touches your recording. EXHAUST POP & BANG TUNER (AMG only) Dial in custom exhaust pops & bangs on OTS tunes — presets plus advanced control, applied at flash. DTC DEACTIVATION Deactivate diagnostic trouble codes across all firmware versions, applied at flash. VEHICLE CODING (beta) Activate hidden features and adjust factory coding — including W205 brake/model coding and AMG 63 exhaust-flap coding. Supported coding is listed at d-syncworks.com. CONTROL-UNIT REPLACEMENT & CLONING (beta) Clone-write the next-generation Common Powertrain Controller (CPC NG), including control-unit replacement. AIRMATIC SUSPENSION CONTROL (beta) Dial in ride height on supported AIRMATIC chassis — AMG GLE/GLS (W167), S-Class (W222) and E-Class (W213). Save your favorite stances and recall them in a tap. ON-BOARD DIAGNOSTICS Read and clear fault codes with plain-language descriptions, right from the app. BUILT FOR AMG Every detail is engineered around the Mercedes platform — automatic ECU identification, per-vehicle configuration, and a tuner ecosystem that speaks your language. WHAT YOU NEED • D-SYNC D1 Bridge — WiFi hardware adapter (sold separately at d-syncworks.com) • A supported Mercedes-AMG / Mercedes-Benz listed above • A D-SYNC account and license Questions or support? Visit d-syncworks.com Note: M256 flashing requires a one-time bench unlock before wireless flashing is available. ** This racing product is for competition, closed-course use only. *** Use of this software may void portions of your vehicle's factory warranty. Some items may not be legal for on-highway use. D-SYNC makes no guarantees as to the legality of any parts used on highway vehicles and accepts no responsibility for compliance with your vehicle's factory warranty.

Screenshots

My Flasher US4 screens
D4 screens

Verdict

The call

My Flasher US and D are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

My Flasher US ships an update weekly, D every 5 days. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

ScorecardNo meaningful differences
My Flasher US versus D: the parameters behind the verdict, then further details
ParameterMy Flasher USD
PriceFreeFree
Rating4.4 (7 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings7 — better—
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.415.0 — better
Further details — not scored
Size90 MB30 MB
Age rating4+4+
DeveloperSwitchOver Inc.LUN LIU

In-app purchases

None

My Flasher US

No in-app purchases

None

D

No in-app purchases

Questions

Is My Flasher US free?
My Flasher US is free to download, with no in-app purchases.
Is D free?
D is free to download, with no in-app purchases.
Do My Flasher US or D have ads?
Neither My Flasher US nor D shows ads.
Which is updated more often, My Flasher US or D?
My Flasher US ships an update weekly, and D every 5 days. Most recently, My Flasher US was updated on October 7, 2026 and D on October 6, 2026.

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