Comparison

Cortex OBD2 vs FaultScan

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

Head to head
About

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.

About

FaultScan

Features
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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 โ€ข Full fault code scan โ€” stored, pending and permanent codes (mode 03/07/0A) โ€ข Plain-English explanations for 1,100+ generic codes, with common causes โ€ข Code lookup โ€” search the full library by code number or description, no scan needed โ€ข Clear verdicts โ€” know if your car is safe to drive โ€ข Freeze frame โ€” see exactly what the engine was doing when the fault happened โ€ข Live dashboard โ€” RPM, speed, coolant temperature, battery voltage, throttle, intake air โ€ข Emission readiness โ€” check monitors before your inspection โ€ข VIN reading โ€ข Scan history โ€” your last 30 scans, stored only on your device โ€ข 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

Cortex OBD24 screens
FaultScan4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences ยท 4 level
Cortex OBD2 versus FaultScan: the parameters behind the verdict, then further details
ParameterCortex OBD2FaultScan
PriceFreeFree
Update frequencyEvery 8 daysEvery 5 days โ€” better
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.015.0 โ€” better
Further details โ€” not scored
Size43 MB28 MB
Age rating4+4+
DeveloperIsmail ImamogluErkan OZSOY

In-app purchases

3 purchases

Cortex OBD2

Subscriptions3
  • MotoCortex PRO Weekly$3.997 Days
  • MotoCortex PRO - Monthly$8.991 Month
  • MotoCortex PRO - Annual$39.991 Year
None

FaultScan

No in-app purchases

Questions

Is Cortex OBD2 free?
Cortex OBD2 is free to download, with in-app purchases available.
Is FaultScan free?
FaultScan is free to download, with no in-app purchases.
Do Cortex OBD2 or FaultScan have ads?
FaultScan shows ads; Cortex OBD2 does not.
Which is updated more often, Cortex OBD2 or FaultScan?
Cortex OBD2 ships an update every 8 days, and FaultScan every 5 days. Most recently, Cortex OBD2 was updated on November 9, 2026 and FaultScan on October 31, 2026.

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