MotorBit vs Cortex OBD2
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
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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? PROFESSIONAL DIAGNOSTIC SCANNER Read and clear diagnostic trouble codes from Engine, Transmission, ABS, Airbag, and Body Control modules. Get AI-powered Fault Doctor analysis with root cause explanations, confidence percentages, and step-by-step repair guidance — not just raw hex codes. LIVE TELEMETRY DASHBOARD Stream real-time sensor data with customizable analog and digital gauges. Monitor RPM, vehicle speed, coolant temperature, turbo boost pressure, fuel trims, mass air flow, battery voltage, and 35+ additional parameters. Choose from preset layouts or build your own dashboard. FORENSIC ODOMETER VERIFICATION Cross-check mileage data across multiple ECU modules — Engine, Instrument Cluster, Transmission, ABS, and Body Control Module. Detect odometer tampering and mileage rollbacks that basic scanners completely miss. Essential for used car buyers. ECU CODING AND ADAPTATIONS Unlock hidden vehicle features with manufacturer-level coding. Needle sweep activation, daytime running light styles, mirror fold on lock, comfort turn signals, and dozens of brand-specific customizations for European and Asian vehicles. DPF REGENERATION AND DIESEL SERVICE Full UDS-based stationary diesel particulate filter regeneration with live exhaust gas temperature monitoring and safety interlocks. Clear soot buildup warnings and restore DPF efficiency without visiting a dealer. FIAT / STELLANTIS PROXI ALIGNMENT Advanced CAN network Proxi alignment for Fiat, Alfa Romeo, Lancia, Jeep, Peugeot, Citroen, and Opel vehicles. Fix flashing odometer issues after component replacement and perform factory-level module configuration. CAMERA VIN SCANNER Point your camera at any VIN barcode, chassis plate, or registration document to instantly decode vehicle specifications. Works completely offline with no data transmitted. DUAL STANDARD UNIT SYSTEM Automatic region-based unit selection: International metric for EU/Asia or US/UK imperial. Switch anytime with a single tap on the telemetry dashboard. 26 LANGUAGES SUPPORTED English, Turkish, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Danish, Finnish, Swedish, Norwegian, Hungarian, Romanian, Russian, Ukrainian, Greek, Arabic, Hindi, Thai, Japanese, Korean, Chinese, and Indonesian. HARDWARE COMPATIBILITY Works with any standard ELM327 Bluetooth or Wi-Fi OBD2 adapter. Optimized for OBDLink, vLinker, Veepeak, Vgate, and Carista adapters. Compatible with all OBD2 compliant vehicles sold worldwide. PRIVACY FIRST 100% ad-free. No tracking. No data collection. Your vehicle data stays on your device. Requires a compatible OBD2 Bluetooth or Wi-Fi adapter, sold separately.
Screenshots
Verdict
The clearest difference is update cadence: Cortex OBD2 at every 8 days against MotorBit's every 3 weeks. Cortex OBD2 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 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 every 8 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.
| Parameter | MotorBit | Cortex OBD2 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 8 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
- MotoCortex PRO Weekly$3.997 Days
- MotoCortex PRO - Monthly$8.991 Month
- MotoCortex PRO - Annual$39.991 Year









