Comparison

FOBD vs G

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

Head to head
About

FOBD

This app functions as a diagnostic scan tool, trip computer, logger, and real-time performance monitor for vehicles. It offers features like OBD-II diagnostics, HUD display, DTC code lookup, and oil reset. Supports English, Spanish, and Russian languages.

Highlights
  • OBD-II Diagnostics
  • Trip Computer
  • Data Logger
  • Real-time Performance Monitor
  • DTC Code Lookup
  • Oil Reset
Features
Read full description

The FOBD is a diagnostic scan tool, trip computer, logger, and real-time performance monitor. Feature:OBD-II Diagnotic / HUD / DTC seek / Oil Reset Support Language: English / Spanish /Russian

About

G

Features
Read full description

Look up car service specs in seconds. G-SPEC helps workshops and technicians quickly find the exact specs they need for car servicing, repair and care. Choose the make, model, year, engine and gearbox to see information that matches the vehicle's configuration. From engine oil and transmission oil to battery, air conditioning, wheels and tyres, and wipers - the specs you need are gathered in one app. No more flipping through manuals in the middle of a job. OILS AND FLUIDS All eight oils and fluids of a full service, each with its standard and capacity: - Engine oil: SAE viscosity grade, API standard, ACEA standard, OEM approval and oil capacity. - Transmission fluid: ATF, CVT fluid, dual-clutch or manual gearbox oil, with SAE and API standards, OEM approval and capacity. - Transfer case fluid: SAE and API standards, OEM approval and capacity for four-wheel-drive vehicles. - Front and rear differential oil: SAE and API standards, OEM approval and separate capacity for each axle. - Coolant: standard, coolant technology, colour and capacity. - Brake fluid: DOT standard. - Clutch fluid: standard, for vehicles with a hydraulic clutch. - Power steering fluid: hydraulic, electric or manual steering, with the fluid standard. - Drain plug torque and related specs. BATTERY - Battery size and capacity. - JIS and DIN standards. - Cold cranking amps. - Vehicles with a second battery list both. CAR AIR CONDITIONING Key specs of the A/C system: - Refrigerant type, including R134a and R1234yf. - Refrigerant charge. - Compressor oil type: PAG, POE or PVE. - Compressor oil amount. - Pressure chart by temperature to support diagnosis. WHEELS AND TYRES - Front and rear tyre sizes. - Recommended tyre pressure. - Rim size, PCD and offset. - Centre bore. - Wheel nut torque and socket size. WIPERS - Front and rear wiper blade sizes. - Mount type. SERVICE SCHEDULE Look up the service schedule by mileage, the items to carry out and what each service level includes. LOOK UP BY VEHICLE CONFIGURATION Choose: Make → Model → Year → Engine → Gearbox G-SPEC narrows results to the vehicle configuration, saving search time and avoiding mix-ups between versions. BRANDS COVERED Data covers mainstream and premium makes: Toyota, Hyundai, KIA, Mazda, Honda, Ford, Mitsubishi, VinFast, Suzuki, Isuzu, Nissan, Chevrolet, Peugeot, Subaru, Volkswagen, Skoda, Volvo, MG, Haval, GWM, Geely, Omoda, Jaecoo, Beijing, GAC, Hongqi, Mercedes-Benz, BMW, Audi, Lexus, Land Rover, Jaguar, Porsche, MINI, Genesis, Infiniti, Acura, Jeep, RAM, Dodge, Chrysler, Cadillac, Renault, Daewoo and more. FAST LOOKUPS - Recently looked-up vehicles appear right on the home screen. - Reopen the vehicles you work on often with one tap. - Results are organised into Servicing, Air conditioning, Battery, Wheels & tyres and Wipers. - Data already viewed is cached on the device, so lookups stay fast where workshop signal is weak. MANY LANGUAGES G-SPEC comes in many languages: English, Vietnamese, Indonesian, Malay, Hindi, Thai, Korean, Japanese, German, French, Spanish, Italian, Dutch, Polish, Turkish, Portuguese (Brazil and Portugal), Swedish, Norwegian, Danish and Finnish. Switch language inside the app under Account. BUILT FOR - Car technicians. - Repair and service workshops. - Service advisors. - Car care centres. - Tyre and wheel shops. - Battery and car air conditioning shops. - Anyone who needs car service specifications. IMPORTANT Specs may vary by market, model year, engine, gearbox and vehicle configuration. G-SPEC data is compiled from manufacturer and partner technical documentation for reference and cross-checking. Always confirm with the manufacturer's official technical documentation before carrying out work. DATA FEEDBACK Send feedback or report data issues inside the app at: Account → Feedback Or via gspec.vn. Terms of Use: https://gspec.vn/en/terms/ Privacy Policy: https://gspec.vn/en/privacy-policy/

Screenshots

FOBD1 screens
G4 screens

Verdict

The call

The clearest difference is ads: FOBD at none against G's shown. FOBD also leads on iOS requirement (10.0 vs 16.4). G's advantage is update cadence (fortnightly vs every 3 months). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

FOBD ships an update every 3 months, G fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
FOBD versus G: the parameters behind the verdict, then further details
ParameterFOBDG
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS10.0 — better16.4
Further details — not scored
Size48 MB47 MB
Age rating4+4+
Developer深圳市爱夫卡科技有限公司Duc Loc Bui

In-app purchases

None

FOBD

No in-app purchases

None

G

No in-app purchases

Questions

Is FOBD free?
FOBD is free to download, with no in-app purchases.
Is G free?
G is free to download, with no in-app purchases.
Do FOBD or G have ads?
G shows ads; FOBD does not.
Which is updated more often, FOBD or G?
FOBD ships an update every 3 months, and G fortnightly. Most recently, FOBD was updated on November 2, 2026 and G on October 31, 2026.

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