Car Scanner ELM OBD2 vs OBD2 Logger

Turn Your iPhone Into a Powerful OBD2 Scanner Car Scanner OBD2 transforms your iPhone into a practical car diagnostic tool for everyday drivers and car enthusiasts. Connect an ELM327 Bluetooth OBD2 adapter to read diagnostic trouble codes, understand why your check engine light is on, and monitor key vehicle sensors in seconds. It supports most vehicles manufactured since 1996 and works with standard OBD2 / OBD-II protocols. Check Engine Light Diagnostics You Can Understand When a warning light appears, you need clarity fast. Car Scanner OBD2 helps you identify common engine issues, review trouble code information, and decide your next step before visiting a shop. * Read and clear OBD2 trouble codes * Understand check engine light warnings * Detect issues early and avoid guesswork * Monitor vehicle health before repairs Live Data & Sensor Monitoring See essential driving and engine readings in one place: * RPM, speed, coolant temperature * Fuel system and sensor status * Performance metrics and key data points Use live data monitoring to spot abnormal readings, track changes over time, and make smarter maintenance decisions. Fast Setup With ELM327 Bluetooth Adapters Car Scanner OBD2 is designed for quick pairing and stable performance with widely available ELM327 Bluetooth adapters. The interface is built to be simple, so you can start scanning quickly—whether you’re checking a single warning or monitoring ongoing engine behavior. Save Time and Avoid Costly Surprises Understanding what’s happening under the hood can help you avoid unnecessary repairs and reduce time spent troubleshooting. Car Scanner OBD2 gives you reliable car diagnostics so you can talk to a mechanic with more confidence—or confirm a quick fix when appropriate. Comparing Car Diagnostic Apps? If you’re looking for an alternative to FIXD, Carly, BimmerLink, BimmerCode, or Torque, Car Scanner OBD2 offers a flexible OBD2 scanning experience using standard adapters—without locking you into proprietary hardware. Disclaimer This app provides informational diagnostic data only and does not replace professional vehicle inspection, diagnosis, or repair. https://carscannerpro.com/terms https://carscannerpro.com/privacy

OBD2 Logger turns your iPhone into a precision data logger for any modern car. Plug a Bluetooth ELM327 adapter into your vehicle's OBD2 port, pair it once, and stream live engine, hybrid, battery, and emissions data straight into per-session CSV files on your phone. No accounts. No cloud. No analytics. Your driving data never leaves your device. LIVE READOUT • 40+ standard SAE J1979 PIDs, automatically discovered from your car: RPM, vehicle speed, coolant temp, throttle, MAF, intake MAP, fuel trims, catalyst temperatures, and more. • Manufacturer-specific Mode 21 PIDs on profiled vehicles — including HV pack voltage, MG1/MG2 motor torque, and battery cell-block temperatures on Toyota/Lexus hybrids. • Values grouped by category (Engine, Hybrid, Battery, Emissions, Diagnostics) and updated every second. • One CSV per logging session, written into the app's Files container — open it in Numbers, Excel, pandas, DuckDB, or any other tool with no preprocessing. • Wide-table format: ISO-8601 timestamps, one column per active PID, blank cells where the ECU returned no data (no spurious forward-fill). • Smart-stop after extended idle so you don't end up with a tail of empty rows when you forget to tap Stop. WORKS IN THE BACKGROUND • Keeps logging while you drive with Maps in the foreground or the screen off, using Apple's standard background location mode for trip-tracking apps. The system location indicator is shown the entire time. We don't store your location. VEHICLE PROFILES • Ships with three profiles: a generic Mode-01 fallback, a Toyota hybrid family profile, and a 2020 Lexus RX 450h/450hL profile validated against a real vehicle. • VIN auto-read on connect; year, make, model, and trim pre-filled from NHTSA's free public vPIC API. • Import any third-party profile JSON to add coverage for your car. The format is documented and human-readable. DON'T HAVE AN ADAPTER YET? • Tap "Try demo mode" on the second onboarding step to explore the app end-to-end with synthetic data — no hardware required. WHAT YOU NEED • Any Bluetooth Low Energy ELM327 adapter (Veepeak OBDCheck BLE+, vLinker MC+, OBDLink, etc. — most BLE clones work). USB-only and Wi-Fi-only adapters are NOT supported. • A car with an OBD2 port (1996+ in the US, 2001+ in the EU). PRIVACY • Nothing is collected, transmitted, or stored on our servers — we don't have servers. The only outbound call the app ever makes is one VIN decode per vehicle to NHTSA's vPIC API. • Your CSVs and vehicle records live in the app's Files container, accessible to you in the iOS Files app under On My iPhone → OBD2 Logger. • Open source: github.com/NathanNam/obd2-logger