Cortex OBD2 vs FaultScan
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
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 โ 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 โ 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.
FaultScan
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Check engine light on? Find out what it means in seconds. FaultScan turns any ELM327 Bluetooth adapter into a plain-English car diagnostic tool. Plug it in, connect, and get a clear verdict: keep driving, drive to a workshop soon, or stop. No subscription. No account. No paywalled answers. WHAT YOU GET โข Full fault code scan โ stored, pending and permanent codes (mode 03/07/0A) โข Plain-English explanations for 1,100+ generic codes, with common causes โข Code lookup โ search the full library by code number or description, no scan needed โข Clear verdicts โ know if your car is safe to drive โข Freeze frame โ see exactly what the engine was doing when the fault happened โข Live dashboard โ RPM, speed, coolant temperature, battery voltage, throttle, intake air โข Emission readiness โ check monitors before your inspection โข VIN reading โข Scan history โ your last 30 scans, stored only on your device โข Share a scan report as text with your mechanic WORKS WITH YOUR ADAPTER Any ELM327-compatible Bluetooth (BLE) adapter โ Vgate iCar Pro, IOS-Vlink and most generic adapters. No dongle lock-in. PRIVATE BY DESIGN Your car data never leaves your device. No account, no tracking of vehicle data, no cloud. Scans are stored locally and only shared if you choose to. FREE & HONEST Supported by unobtrusive ads. Every feature is free โ no premium tier, no trial limits. Note: FaultScan reads and clears diagnostic codes. For repair decisions, always consult a qualified mechanic.
Screenshots
Verdict
The clearest difference is in-app purchases: FaultScan at none against Cortex OBD2's 3. Cortex OBD2's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Cortex OBD2 sells 3 in-app purchases, starting at $3.99 per 7 days. FaultScan asks for nothing beyond the download.
Cortex OBD2 ships an update every 8 days, FaultScan every 5 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | Cortex OBD2 | FaultScan |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days | Every 5 days โ better |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 16.0 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 43 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Ismail Imamoglu | Erkan OZSOY |
In-app purchases
Cortex OBD2
- MotoCortex PRO Weekly$3.997 Days
- MotoCortex PRO - Monthly$8.991 Month
- MotoCortex PRO - Annual$39.991 Year
FaultScan
No in-app purchases









