# OBD Vault: Diagnostics & MCP — OBD2 scans, sensors and trips > OBD2 scans, sensors and trips (iPhone/iPad app by Bahdan Hal.) - Source: https://appshunter.io/ios/app/obd-vault-diagnostics-and-mcp/id6808813416 (this page in markdown: same URL + `.md`) - Developer: [Bahdan Hal](https://appshunter.io/developer/6808813418) - Category: Utilities - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 40 MB - Languages: American English - Released: 2026-09-23 - Data updated: 2026-11-06 ## What is OBD Vault? 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/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | 10 vehicles · Per month | $14.95 | per month | | 1 vehicle · Per year | $17.99 | per year | | 1 vehicle · Per month | $2.99 | per month | | 3 vehicles · Per month | $5.99 | per month | | 3 vehicles · Per year | $35.99 | per year | | 10 vehicles · Per year | $89.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 1 vehicle · Lifetime | $34.99 | one-time | | 3 vehicles · Lifetime | $69.99 | one-time | | 10 vehicles · Lifetime | $174.99 | one-time | ## Is OBD Vault safe? Not enough ratings yet to assess OBD Vault. ## Is OBD Vault legit? OBD Vault: Diagnostics & MCP has limited verification signals. The AppsHunter Legitimacy Score for OBD Vault is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 1.4.2 — 2026-11-06 Improved trip fuel estimates, diagnostic accuracy, and synchronization reliability. ### 1.4.1 — 2026-11-02 Manual MCP setup for China mainland, with a connector address and shareable configuration. Updated connector guidance and localized store information. ### 1.4.0 — 2026-10-31 On iPhone, Wi-Fi recording pauses when you leave OBD Vault or lock the screen. Keep OBD Vault open and the screen on while recording. You can stay on the Live Data screen. View trip status on the Lock Screen with Live Activities. Stop recording from Live Data; iOS 17 or later also supports stopping from the Live Activity. Switch vehicles from the dashboard. Improved Bluetooth connections, diagnostics, and synchronization of long trips. ### 1.3.1 — 2026-10-19 Plans for 1, 3 or 10 vehicles: monthly, yearly or lifetime. Clearer sync and own-AI setup after the first scan. More control-unit diagnostics, better connection recovery and complete trip sync. ### 1.2.1 — 2026-10-09 Search an offline catalog of 433 makes and 10,871 models, with model-specific engine choices. Optional vehicle setup before your first scan when VIN is unavailable. Recalculate fuel estimates for saved trips when the required sensor history is available. Prefer ECU-reported fuel flow when supported, with fuel-aware fallback estimates. Updated interface and translations in 15 languages. ## Apps similar to OBD Vault | App | Rating | Price | Category | | --- | --- | --- | --- | | [Lewis: AI OBD2 Car Scanner](https://appshunter.io/ios/app/lewis-ai-obd2-car-scanner/id6759301769) | 5.0 (2) | Free | Utilities | | [I'm Hero OBD2 Scanner](https://appshunter.io/ios/app/im-hero-obd2-scanner/id6786429613) | — | Free | Utilities | | [Rheosoft OBD2](https://appshunter.io/ios/app/rheosoft-obd2/id6754894819) | — | Free | Utilities | | [Elm327 WiFi Codes](https://appshunter.io/ios/app/elm327-wifi-codes/id6800437278) | — | Free | Utilities | | [UstaScan](https://appshunter.io/ios/app/ustascan/id6761293520) | 5.0 (2) | Free | Utilities | | [OBD Compass](https://appshunter.io/ios/app/obd-compass/id6758076036) | — | Free | Utilities | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*