OBD2UDS Car Scanner & OBD2 vs Cortex OBD2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OBD2UDS Car Scanner & OBD2
This app helps car owners diagnose issues, monitor live data, and perform advanced diagnostics using an OBD2 adapter. It provides fault code reading, custom parameter monitoring, and detailed vehicle information for DIY maintenance and repair comparisons.
- Read and clear OBD2 fault codes
- Monitor live sensor data
- Advanced UDS diagnostics
- Customizable dashboards
- Export data as CSV
- Vehicle-specific parameters
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OBD2UDS combines OBD2 fault codes, live data, vehicle-specific parameters and UDS diagnostics for car checks, DIY maintenance, used car inspections and before-and-after repair comparisons. Connect a compatible ELM327 Bluetooth OBD2 adapter to read supported vehicle data, build your dashboard and save records and charts. EXTENDED PARAMETERS BY VEHICLE Browse reference parameters by make and model, add them to your list and try a read. Set a capture duration for supported parameters, then review trends and statistics. - Browse parameters by make and model - Try reading one or multiple parameters - Add custom parameters or import compatible CSV definitions - Review capture charts, minimum, maximum and average values - Export captured data as CSV for comparison Reference entries are not proof of testing on every listed vehicle. Availability depends on model year, configuration, ECU, protocol and adapter. FAULT CODES AND VEHICLE CHECKS Read and clear supported engine fault codes. View freeze frames and vehicle or ECU information to help investigate a check engine light. I/M readiness, Mode 06 test data and oxygen sensor waveforms provide context for emissions preparation and troubleshooting. LIVE DATA AND YOUR DASHBOARD Monitor supported sensors such as RPM, coolant temperature, speed, engine load and fuel trims. Configure your dashboard and parameters before connecting; vehicle support is checked after connection. ADVANCED UDS DIAGNOSTICS Read diagnostic information from supported ECU modules where a compatible configuration is available. Coverage may include engine, transmission, ABS or SRS and varies by vehicle. Save reports or copy vehicle and fault-code details for further analysis. RECORDS, FUEL DATA AND CSV Record multiple PID sensors, review charts and history, and save fuel records and diagnostic reports for repair comparisons. Export PID and fuel records as CSV. Some interrupted tests retain partial results. Additional tools include acceleration tests, battery voltage and cranking-drop checks, fuel and energy monitoring, and cabin noise monitoring. Available data depends on your device and vehicle. BEFORE YOU CONNECT - A Bluetooth OBD2 adapter compatible with your phone and vehicle is required separately. - Standard OBD2, extended parameters and UDS have different coverage. Not every vehicle or module is supported. - Browse the reference catalog; adding, editing, importing, trial reads and capture require sign-in and applicable Premium access. Recording and history require sign-in; some professional tools require Premium. - Clearing codes does not repair faults. Results support troubleshooting. Read faults and track changes with OBD2UDS for vehicle checks backed by data. SUBSCRIPTIONS If you choose an auto-renewing subscription, payment is charged to your Apple account at confirmation. It renews unless auto-renewal is turned off at least 24 hours before the period ends. Manage or cancel in your Apple account subscription settings. Prices, periods and access are shown on the purchase screen. Privacy policy: https://www.obd2uds.com/privacy.html Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
OBD2UDS Car Scanner & OBD2 and Cortex OBD2 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. OBD2UDS Car Scanner & OBD2 sells 2 in-app purchases, starting at $1.99 per month 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.
OBD2UDS Car Scanner & OBD2 ships an update fortnightly, Cortex OBD2 every 8 days. Both last shipped on November 9, 2026.
| Parameter | OBD2UDS Car Scanner & OBD2 | Cortex OBD2 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 67 MB | 43 MB |
| Age rating | 17+ | 4+ |
| Developer | Rich Pearl Limited Corporation | Ismail Imamoglu |
In-app purchases
OBD2UDS Car Scanner & OBD2
- Premium Monthly3 Days trial$1.991 Month
- Premium Yearly3 Days trial$9.991 Year
Cortex OBD2
- MotoCortex PRO Weekly$3.997 Days
- MotoCortex PRO - Monthly$8.991 Month
- MotoCortex PRO - Annual$39.991 Year
Questions
Is OBD2UDS Car Scanner & OBD2 free?
Is Cortex OBD2 free?
Do OBD2UDS Car Scanner & OBD2 or Cortex OBD2 have ads?
Which is updated more often, OBD2UDS Car Scanner & OBD2 or Cortex OBD2?
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