Comparison

MG DUO vs MotorBit OBD 2

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

Head to head
About

MG DUO

Features
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Mobile Gauges DUO variant application helps you to choose between different display variants: black gauges style (default) white gauges style Also new add ons for selecting measurement units for: GPS speed : km/h(default) or knots fuel consumption : l/h(default) or gal/h temperature: Celsius(default) or Fahrenheit You have to enable bluetooth access and GPS speed to use all the features of this application. Known errors: 1. if there is no MMDG device connected and you try to connect to an unrecognised bluetooth device, the app will end. You need to stop the app and restart app. 2. if you try to connect to an MMDG which is not connected to the engine, the app will retry to connect but because there is no data coming from MMDG it will refresh after few seconds. As soon as connection is established correctly there is no known error. Please report in comments possible errors found.

About

MotorBit OBD 2

Features
Read full description

MotorBit OBD2 – Professional Vehicle Diagnostics & Engine Analysis Diagnose your vehicle like a professional service tool. MotorBit OBD2 is an advanced vehicle diagnostics and analysis app that works with ELM327-compatible Bluetooth adapters. View real-time sensor data, read and clear fault codes, perform performance tests, and analyze your engine data in detail. Free Features Bluetooth Connection • Compatible with ELM327 Bluetooth adapters • Supports Bluetooth LE (4.0+) and MFi • Automatic and manual connection options • Fast device scanning Live Dashboard • Engine RPM, speed, temperature • Throttle position and engine load • Fuel pressure and intake manifold pressure • Lambda sensor and fuel level • Professional service tool-style interface Fault Codes (DTC) • Read P, C, B, and U codes • English fault descriptions • Clear fault codes • Freeze frame data • Check Engine (MIL) status Live Graphs • Real-time sensor graphs • Multi-parameter display • Zoom and scroll support • CSV and JSON data export OBD-II Monitors • Emissions system status • Readiness tests • ECU information and calibration ID MotorBit Pro Features Performance Tests • 0–100 km/h acceleration test • 100–0 km/h braking test • Quarter mile (1/4 mile) test • Engine power analysis Statistics • Driving distance and duration • Average and maximum speed • Fuel consumption analysis • Trip computer Advanced Diagnostics • VIN decoding (vehicle information) • Detailed freeze frame analysis • Emissions monitors • Fuel trim analysis (STFT / LTFT) Data Logging & Reporting • Record sensor data • CSV and JSON export • Generate PDF reports • Dated history logs Custom PID Support • User-defined parameters • Custom formula support • Advanced sensor integration ELM327 Terminal • Direct ELM327 commands • AT command support • OBD commands (Mode 01–09) • Command history Supported Devices • ELM327 Bluetooth (v1.5+) • OBDLink MX+, LX, CX • Vgate iCar Pro • BAFX Products • ScanTool OBDLink • Veepeak Mini / Plus • Carista OBD2 • All ELM327-compatible adapters Supported Protocols • ISO 9141-2 • ISO 14230-4 (KWP2000) • ISO 15765-4 (CAN) • SAE J1850 PWM • SAE J1850 VPW Design & Performance • Professional service tool interface • Dark theme (eye-friendly) • High-contrast gauges • Real-time data updates • Optimized Bluetooth communication Privacy • All data is stored on your device • No data is sent to servers • No ads or tracking Demo Mode You can try the app even without an OBD-II adapter. Test all features with simulated data in demo mode. Use Cases • Engine fault detection • Check Engine light diagnostics • Emissions test preparation • Fuel consumption analysis • Performance measurement • Vehicle maintenance tracking • Used car inspection Support www.motorbit.o2canyon.com Notes • Works with vehicles that support the OBD-II standard (1996+) • Requires an ELM327-compatible Bluetooth adapter • Do not use while driving • Consult a professional service for critical issues Access your vehicle’s engine data, detect faults, and analyze performance with MotorBit OBD2. Professional vehicle diagnostics are now in your pocket.

Screenshots

MG DUO3 screens
MotorBit OBD 24 screens

Verdict

The call

The clearest difference is in-app purchases: MG DUO at none against MotorBit OBD 2's 1. MG DUO also leads on device support (3 vs 1) and iOS requirement (9.0 vs 18.4). On price and ads 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. MotorBit OBD 2 sells 1 one-off in-app purchase. MG DUO asks for nothing beyond the download.

Scorecard3 real differences · 3 level
MG DUO versus MotorBit OBD 2: the parameters behind the verdict, then further details
ParameterMG DUOMotorBit OBD 2
PriceFreeFree
Update frequency—Every 3 months
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS9.0 — better18.4
Further details — not scored
Size44 MB17 MB
Age rating4+4+
DeveloperStefan BoicuOguzcan Oruc

In-app purchases

None

MG DUO

No in-app purchases

1 purchases

MotorBit OBD 2

One-time1
  • MotorBit Pro$5.99

Questions

Is MG DUO free?
MG DUO is free to download, with no in-app purchases.
Is MotorBit OBD 2 free?
MotorBit OBD 2 is free to download, with in-app purchases available.
Do MG DUO or MotorBit OBD 2 have ads?
Neither MG DUO nor MotorBit OBD 2 shows ads.

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