OBD Vault vs OBD2+

Read vehicle diagnostics, live sensor readings and trip history with a compatible ELM327 OBD-II adapter. A vehicle and adapter are required for new scans and live readings. Available data depends on the vehicle, ECU and adapter. Read confirmed, pending and permanent fault codes, emissions readiness and freeze-frame data when supported. View RPM, speed, coolant temperature and other available readings. Record trips and review distance, sensor history and supported or estimated fuel use. Scans and trips are stored separately. Keep local scans, live data and history for one vehicle without an account or subscription. Select your vehicle's make, model and engine from an offline catalog when VIN is unavailable, or enter details manually. Optional paid plans cover a total of 1, 3 or 10 vehicles and include cloud synchronization, MCP access and file exports. Choose monthly, annual or lifetime access. Monthly and annual subscriptions renew automatically until canceled in your store account; lifetime is a one-time purchase. Current prices and terms appear in the app. File export requires active paid access. Connect your own compatible MCP client separately to read synced records. OBD Vault does not run an AI model. The connector cannot control your vehicle or clear fault codes. Clearing codes in the mobile app is a separate manual action requiring confirmation. Standard OBD-II diagnostics and selected manufacturer-specific units and readings are supported where references are available. Coverage varies; comprehensive manufacturer coverage, ECU coding and active tests are not provided. Code explanations are guidance, not a confirmed root cause or a safety certificate. Qualified inspection may still be needed. On iPhone, use a compatible Bluetooth Low Energy (BLE) or Wi-Fi/TCP adapter. Bluetooth Classic is not supported. BLE supports background collection. Wi-Fi recording pauses when you leave the app or lock the screen: keep OBD Vault open with the screen on. Live Activities show trip status on supported iOS versions. Vehicle data: VehiclesDB (vehiclesdb.com). Additional sources: FuelEconomy.gov (DOE/EPA) and European Environment Agency. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

OBD2 Plus is a vehicle diagnostic app for iPhone that connects to a compatible Wi-Fi OBD2 / ELM327 adapter. IMPORTANT: A compatible Wi-Fi OBD2 adapter is required to obtain vehicle data. The adapter is not included with the app and must be purchased separately. Connect the OBD2 adapter to your vehicle's OBD2 port, then connect your iPhone to the adapter's Wi-Fi network. Main Features • Real-time vehicle speed • Engine RPM • Coolant temperature • Engine load • Intake air temperature • Intake manifold pressure • MAF air flow • Throttle position • Fuel level • Vehicle voltage • Hybrid-related data on supported vehicles • VIN reading • Diagnostic Trouble Code (DTC) reading • DTC clearing • Real-time CAN communication monitoring • CAN ID filtering • RAW CAN data and bit-level display • Manual OBD2 command transmission • Advanced CAN frame transmission • Communication log saving and sharing • Driving location display using iPhone location services Compatible Hardware OBD2 Plus is designed for Wi-Fi-enabled OBD2 adapters, including compatible ELM327-based devices. Requirements: • iPhone • Wi-Fi-enabled OBD2 / ELM327-compatible adapter • Vehicle equipped with a compatible OBD2 port Bluetooth-only OBD2 adapters are not supported. Compatibility and available data may vary depending on the vehicle model, model year, ECU, vehicle specifications, and OBD2 adapter. Location Services If location access is permitted, OBD2 Plus can use the iPhone's location information to display the current or recorded driving position on a map. Location access is optional. OBD2 diagnostic features that do not require location information can still be used without location permission. Privacy Vehicle data, VIN, DTCs, CAN data, OBD2 communication data, and location information are generally processed locally on the user's iPhone. OBD2 Plus does not transmit this vehicle information or location information to external servers managed by the developer. The app does not require user registration or login. Safety Use OBD2 Plus only when the vehicle is safely stopped. Do not operate the app or your iPhone while driving. Clearing DTCs does not repair the underlying cause of a vehicle fault. If the cause remains unresolved, the diagnostic trouble code or warning light may return. CAN transmission features are intended for users who understand vehicle communication. Sending incorrect CAN frames may cause unexpected vehicle ECU behavior. After use, disconnect the OBD2 adapter from the vehicle if appropriate to avoid unnecessary auxiliary battery drain.