Comparison

Tunit Plus vs D

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

Head to head
About

Tunit Plus

Control your car's performance and economy with this app. Download specific maps for your vehicle to enhance driving experience. Easily switch between ECO, STD, SPORT, and SPORT+ settings.

Highlights
  • Control car performance
  • Manage car economy
  • Download specific car maps
  • Switch between ECO, STD, SPORT, SPORT+ settings
  • Upload programs to car
  • Return to standard settings
Read full description

Tunit Plus is the most innovative and simplest way of controlling your cars performance & economy in conjunction with the Tunit Optimum. www.tunit.com This APP allows you to download the specific map / program for your car. Simply upload the program to your car in minutes, drive and enjoy. To return to standard choose STD or disconnect. Choose from settings of ECO , STD, SPORT & SPORT+ For more information & help contact our 7 day a week support. Info@tunit.com

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 Ā· MED17.7 V6LA Ā· MED40AMG Ā· MED17.7 (M157/M278) Ā· Bosch MG1 (M256) Ā· VGS-NAG3 (9G) Ā· 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

Tunit Plus4 screens
D4 screens

Verdict

The call

The clearest difference is update cadence: D at every 5 days against Tunit Plus's every 2 months. Tunit Plus's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

Tunit Plus ships an update every 2 months, D every 5 days. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.

Scorecard2 real differences Ā· 6 level
Tunit Plus versus D: the parameters behind the verdict, then further details
ParameterTunit PlusD
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size50 MB30 MB
Age rating4+4+
DeveloperTachos LLCLUN LIU

In-app purchases

None

Tunit Plus

No in-app purchases

None

D

No in-app purchases

Questions

Is Tunit Plus free?
Tunit Plus is free to download, with no in-app purchases.
Is D free?
D is free to download, with no in-app purchases.
Do Tunit Plus or D have ads?
Neither Tunit Plus nor D shows ads.
Which is updated more often, Tunit Plus or D?
Tunit Plus ships an update every 2 months, and D every 5 days. Most recently, Tunit Plus was updated on September 30, 2026 and D on October 6, 2026.

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