MotorBit vs Cortex OBD2 Diagnostic Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MotorBit
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Check engine light on? MotorBit turns your iPhone and an ELM327-compatible OBD-II adapter into a clear, easy-to-use car diagnostic tool. Read fault codes, see what they mean in plain language, clear them after the repair and watch live engine data. Plug in the adapter, connect and scan. MotorBit explains the rest. FAULT CODES (DTC) • Read stored P, C, B and U trouble codes • Plain-language explanation on the code detail screen • Clear codes and turn off the check engine light (MIL) after repair • MIL status and number of stored codes LIVE DATA & CHARTS • Dashboard with RPM, speed, coolant temperature, engine load, throttle position and more • Live data screen with real-time values for every supported sensor • Single and multi-sensor charts with min / avg / max values READINESS MONITORS & ECU • OBD-II readiness monitors before an emissions or smog inspection • ECU information MOTORBIT PRO (in-app purchase) • Performance estimates: 0-100 km/h, 0-60 mph, engine power, torque and braking distance • Freeze frame: the sensor snapshot saved when a fault was set • Emission readiness test • Fuel trim analysis (STFT / LTFT) • Driving statistics • Data recording with CSV and JSON export • PDF diagnostic report in your language • Vehicle information with VIN decoding • Custom PIDs and ELM327 terminal DEMO MODE No adapter yet? Try the app with simulated vehicle data. PRIVACY Your vehicle data stays on your iPhone. No ads. 12 LANGUAGES English, Turkish, German, Spanish, French, Italian, Portuguese, Polish, Russian, Dutch, Thai and Traditional Chinese. REQUIREMENTS • A Bluetooth LE (BLE) ELM327-compatible OBD-II adapter (sold separately) • A vehicle that supports OBD-II / EOBD • Available data depends on what your vehicle's ECU supports Do not use the app while driving. For serious faults, consult a qualified mechanic. Support: https://motorbit.o2canyon.com/support.html
Cortex OBD2 Diagnostic Scanner
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Turn your iPhone into an advanced automotive scanner and professional diagnostic powerhouse with Cortex OBD2 Diagnostic Scanner. Designed for car enthusiasts, daily drivers, and workshop technicians, Cortex connects wirelessly via Bluetooth to your vehicle ECU to deliver instant insights, eliminate mystery dashboard warning lights, and unlock hidden vehicle features. WHY CORTEX OBD2? Most car scanners only read basic OBD2 generic engine codes. Cortex goes deeper with full system diagnostics across engine, transmission, ABS, airbag, body control, and battery management modules. Cortex bridges the gap between basic code readers and expensive dealership tools. KEY FEATURES FULL SYSTEM DIAGNOSTICS AND DTC FAULT CODES - Read and clear Check Engine Light CEL and manufacturer trouble codes. - Access detailed freeze frame telemetry data captured at the exact moment of a fault. - Understand fault severity with clear explanations and repair guidance. REAL TIME SENSOR MONITORING AND LIVE TELEMETRY - Track vital engine parameters in real time including coolant temperature, boost pressure, RPM, intake air temperature, speed, fuel trim, and battery voltage. - Customize your dashboard gauges with smooth data refresh rates. - Record and export sensor live graphs for remote diagnostics and performance tuning. ADVANCED DPF MONITORING AND DIESEL PARTICULATE FILTER REGENERATION - Dedicated diesel filter diagnostics: soot mass, soot percentage, ash load, and differential pressure. - Monitor active exhaust gas temperatures across bank sensors. - Service reset and diesel particulate filter status tracking for popular diesel platforms. FORENSIC MULTI MODULE ODOMETER AUDIT - Detect used car odometer tampering before buying a pre-owned vehicle. - Cross-verify mileage data from the instrument cluster against the engine ECU, transmission TCU, ABS controller, and body computer. - Real-time audit progress bar and detailed verification logs. VEHICLE CUSTOMIZATION AND PROXI CONFIGURATION - Configure supported factory convenience features and lighting. - Perform PROXI alignment procedures on supported FCA vehicles. - Clear adaptation values and service intervals after oil changes and mechanical maintenance. SUPPORTED ADAPTERS Cortex works with high-performance Bluetooth Low Energy BLE OBD2 adapters: - vLinker MC+, vLinker FS, vLinker FD+ - OBDLink CX, OBDLink MX+ - Vgate iCar Pro BLE 4.0 - Veepeak OBDCheck BLE and BLE+ - Standard ELM327 Bluetooth v4.0 compatible interfaces SUPPORTED PROTOCOLS AND VEHICLE COMPATIBILITY Compatible with gasoline vehicles manufactured since 2001 and diesel vehicles since 2004 adhering to OBD2, EOBD, and JOBD standards: - ISO 15765-4 CAN 11-bit and 29-bit - ISO 14230-4 KWP2000 - ISO 9141-2 - SAE J1850 PWM and VPW Take complete control of your vehicle health and save on expensive dealership diagnostic fees with Cortex.
Screenshots
Verdict
The clearest difference is update cadence: Cortex OBD2 Diagnostic Scanner at every 9 days against MotorBit's every 3 weeks. Cortex OBD2 Diagnostic Scanner also leads on iOS requirement (16.0 vs 18.4). On price, ads, 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
Both are free to download. MotorBit sells 1 one-off in-app purchase and Cortex OBD2 Diagnostic Scanner sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
MotorBit ships an update every 3 weeks, Cortex OBD2 Diagnostic Scanner every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | MotorBit | Cortex OBD2 Diagnostic Scanner |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.4 | 16.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Oguzcan Oruc | Ismail Imamoglu |
In-app purchases
MotorBit
- MotorBit Pro$5.99
Cortex OBD2 Diagnostic Scanner
- MotoCortex PRO Weekly$3.997 Days
- MotoCortex PRO - Monthly$8.991 Month
- MotoCortex PRO - Annual$39.991 Year
Questions
Is MotorBit free?
Is Cortex OBD2 Diagnostic Scanner free?
Do MotorBit or Cortex OBD2 Diagnostic Scanner have ads?
Which is updated more often, MotorBit or Cortex OBD2 Diagnostic Scanner?
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