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OBD diagnostics, Drive recording, Maintenance tracking, Cost Analyser, Reports
TRUE OBD turns a compatible ELM327 OBD-II adapter into a premium vehicle companion — live diagnostics, fault insight, drive records, fuel-cost analysis, maintenance tracking, Android Auto and Wear OS support, all built local-first so your car data stays yours. LIVE OBD2 TELEMETRY View real-time RPM, coolant temperature, intake temperature, throttle, battery voltage, fuel data, pressures and supported sensor values. TRUE OBD only shows parameters your vehicle reports — never faked or guessed. SMART FAULT DIAGNOSIS Scan trouble codes and get clear, plain-language explanations. Where available, TRUE OBD also uses freeze-frame data to explain the engine conditions captured when the fault was set. FULL-SPECTRUM FAULT SCAN Read stored, pending and permanent diagnostic codes, MIL status and emissions-readiness monitors. Clearing codes is always a separate, explicit user action. DRIVE RECORDS & ROUTE HISTORY Track trips with route, distance, fuel economy, idle time, cost, CO₂ estimate and driving score. View recent drives, weekly summaries and detailed history. You can merge or delete selected drive records while keeping local and Google Drive backup data consistent. COST ANALYSER See what every drive really costs. Track fuel price, trip cost, monthly spend, cost per km or mile, fuel used, economy trends, expensive drives and useful cost insights. Completed trips keep their fuel-price snapshot, so old records do not silently change when fuel prices are updated. MULTI-VEHICLE GARAGE Manage multiple vehicles with separate drive records, maintenance items, odometer carry and vehicle-specific summaries. Unassociated trips can be added to the correct vehicle later, and deleting a vehicle does not erase old drive history. MAINTENANCE & SERVICE LIFE Track service schedules, odometer, insurance and licence reminders. Maintenance belongs to the relevant vehicle, while driving licence records stay linked to the driver. Service-life cards show what is healthy, due soon or overdue. TRUEOBD FOR WATCH Use the Wear OS companion to view live vehicle metrics, engine data, weekly driving breakdowns, recent drives, cost insights, service life, licence and insurance reminders from your watch. Multi-vehicle awareness lets the watch show summaries for the selected vehicle. ANDROID AUTO COMPANION TRUE OBD supports a simplified Android Auto experience for quick, read-only vehicle metrics on the car display. Full diagnostics, settings and detailed analysis remain on the phone. PERFORMANCE TESTS Measure 0–100/0-60, quarter-mile and braking distance using GPS and live vehicle data, with clear safety notes. Use only where safe and legal. TRUE OBD LABS Explore advanced, clearly labelled, read-only diagnostics. Labs features do not send coding, reset, actuator or write commands to your vehicle. PRIVATE BY DESIGN * Your drives, diagnostics and vehicle data are stored on your device. * Optional backup goes to your own Google Drive, not a TRUE OBD server. * Guest Mode is supported; Google Sign-In is optional. * No ads, no advertising ID and no data sold. * Delete your data from inside the app. SPEAKS YOUR LANGUAGE Available in multiple languages, with your preferred units, fuel settings and currency. WORKS WITH YOUR ADAPTER Compatible with standard ELM327 Bluetooth OBD-II adapters on many OBD-II vehicles. Support depends on your vehicle, ECU, adapter quality and available sensors. — TRUE OBD is for information only. It is not a substitute for professional inspection, diagnosis, repair, roadworthiness testing or safe-driving judgment, and it does not control your vehicle. Vehicle, GPS and adapter data may be delayed, incomplete or inaccurate. Always follow road laws, stop safely and consult a qualified mechanic before acting on any result. Questions or feedback? [densmac06@gmail.com](mailto:densmac06@gmail.com) Privacy Policy: https://trueobd.web.app/privacy