# OpenOBD: OBD2 Car Scanner — Check Engine Light Code Reader

> Real-time car dashboard and diagnostics using an OBD2 adapter. (iPhone/iPad app by Osman Cengeri.)

- Source: https://appshunter.io/ios/app/openobd-obd2-car-scanner/id6780283561 (this page in markdown: same URL + `.md`)
- Developer: [Osman Cengeri](https://appshunter.io/developer/1807592099)
- Category: Utilities
- Price: Free
- Rating: 4.80/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 54 MB
- Languages: American English, Arabic, Bangla, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France) and 33 more
- Released: 2026-06-17
- Data updated: 2026-10-28
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/openobd-obd2-car-scanner/id6780283561/reviews.md

## What is OpenOBD?

OpenOBD turns your iPhone into a real-time car dashboard. Connect any ELM327 OBD2 adapter (Bluetooth or Wi-Fi) and see what your car is really doing — live.

LIVE ENGINE DATA
• Speed, RPM, coolant temperature, intake, throttle, engine load, battery voltage and more
• 50+ sensors with gauges you pick and reorder yourself
• Instant and average fuel consumption
• Tap any gauge for a live 60-second chart

CARPLAY
• A live 8-tile dashboard on your car's built-in screen
• Start and stop trip recording without touching your phone

DIAGNOSTICS
• Read and clear fault codes (DTCs) with plain-language explanations
• For common codes: what it means, how urgent it is, what to do next
• Emissions readiness monitors before an inspection
• Freeze frame — the sensor values from the moment the fault occurred
• Vehicle info: VIN, fuel type, supported sensors

TRIP LOGGING
• Automatically record your drives with the GPS route on a map
• Keeps recording in the background, even with the screen locked
• Distance, duration, speed and fuel for every trip
• Export any trip as CSV or GPX

CAR HEALTH TOOLS
• Battery and charging test: state of charge, alternator and cranking check
• Diesel and DPF pre-check from standard, read-only OBD evidence
• Used car check before you buy
• Measure 0-100 km/h acceleration and 100-0 km/h braking
• Live alerts for overheating and low voltage, in plain language

BUILT FOR DRIVERS
• Beautiful dark interface designed for the car
• Over 40 languages, metric and imperial units
• Works with affordable ELM327 adapters — no subscription, no account, no ads
• Your data stays on your phone

TRY IT WITHOUT HARDWARE
• Tap Connect, then Demo Mode, to explore every feature with simulated live data

OpenOBD is not affiliated with any car manufacturer. An OBD2 adapter (sold separately) is required to read data from your vehicle. Most petrol cars built after 2001 and diesels after 2004 are supported. The battery, diesel and used-car results are read-only pre-checks and do not replace a professional inspection.

## Key features

- Live engine data monitoring
- Real-time speed, RPM, temperature gauges
- Trip logging with GPS mapping
- Read and clear diagnostic trouble codes (DTCs)
- Vehicle information display
- Demo mode for exploration

## Is OpenOBD safe?

Not enough ratings yet to assess OpenOBD.

## Is OpenOBD legit?

OpenOBD: OBD2 Car Scanner appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for OpenOBD is 65 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/openobd-obd2-car-scanner/id6780283561/reviews.md

### 4/5 — LOTS of potential.

*2026-09-03*

This app will be great if it evolves. Lots of bugs to work out. CarPlay interface is a little boring and small despite plenty of screen.  Some CarPlay readings only display in Celsius although Empirical selected in settings.  Only used a few times but I’m excited for it to improve. Successfully connecting with vLinker MC

**Developer response:** Thanks for the feedback. Due to CarPlay’s current design limitations, I’m not yet able to offer the fully custom and creative interface I have in mind, but I’m actively working on improving it and making better use of the available space. I’ll also look into the bugs you mentioned, including the Imperial/Celsius issue, as soon as possible. Thanks again for helping improve OpenOBD.

## Frequently asked questions about OpenOBD

### What is OpenOBD?

OpenOBD turns your iPhone or iPad into a real-time car dashboard. It allows you to monitor live engine data, log your trips, and read/clear diagnostic trouble codes when connected to an ELM327 OBD2 adapter.

### Does OpenOBD require an OBD2 adapter?

Yes, an OBD2 adapter (sold separately) is required to read data from your vehicle. However, you can explore all features using the built-in demo mode without any hardware.

### What kind of car data can I see with OpenOBD?

You can view live engine data such as speed, RPM, coolant temperature, intake air temperature, throttle position, engine load, and battery voltage. It also shows instant and average fuel consumption.

### Can OpenOBD read and clear fault codes?

Yes, OpenOBD can read and clear fault codes (DTCs) and provides plain-language explanations for them. It also shows the check-engine light status and stored trouble codes.

### What vehicles are compatible with OpenOBD?

Most petrol cars built after 2001 and diesel cars built after 2004 are generally supported. Compatibility depends on the vehicle's OBD2 compliance.

### How often is OpenOBD updated?

The latest version, 1.2.1, was released on September 3, 2026. Updates typically include new features, bug fixes, and performance improvements.

### Is OpenOBD available on Android?

Based on the provided data, OpenOBD is available for iPhone and iPad, indicating it is an iOS application.

### Does OpenOBD have ads?

No, OpenOBD is ad-free. The application does not contain advertisements, allowing for an uninterrupted user experience.

## Version history (last 5 releases)

### 1.3.3 — 2026-10-27

• Connects to your last adapter automatically when the app opens and when CarPlay starts.
• CarPlay: tap Connect on the car screen to connect without picking up your phone.
• iPad: a denser dashboard with live 60-second charts, and a side tab bar you can drag to either edge or to the bottom.
• iPhone Duo: content stays clear of the camera edge.

### 1.3.2 — 2026-10-25

• Wi-Fi adapters: clearer help when the connection fails, and a Bluetooth suggestion after repeated failures.
• Stability improvements under the hood.
• Minor improvements and fixes.

### 1.3.1 — 2026-10-14

• New setup guide: tell OpenOBD which adapter you have and get step-by-step help to connect.
• Connection problems are easier to diagnose.
• Optional anonymous usage statistics now also cover screens and connection steps. They stay off unless you allow them, and you can change this in Settings at any time.
• Minor improvements and fixes.

### 1.3.0 — 2026-10-09

• Tab bar fix: every tab is now fully tappable, including the space between icons.
• Optional anonymous usage statistics now use Google Analytics for Firebase. They stay off unless you allow them and can be changed anytime in Settings.
• Minor improvements and fixes.

### 1.2.1 — 2026-09-03

Improved live data updates in CarPlay and while the phone is locked. Refined the Trips and Diagnostics screens, with clearer battery voltage and diesel status indicators. Includes stability and interface improvements.

## Apps similar to OpenOBD

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [AutoCheck OBD](https://appshunter.io/ios/app/autocheck-obd/id6771629013) | 4.0 (1) | Free | Utilities |
| [OBDPulse OBD2 Car Scanner](https://appshunter.io/ios/app/obdpulse-obd2-car-scanner/id6747773854) | 5.0 (1) | Free | Utilities |
| [CarPulse: OBD2 Car Scan Tool](https://appshunter.io/ios/app/carpulse-obd2-car-scan-tool/id6761851372) | — | Free | Utilities |
| [OBD2 Car Scanner Pro ELM327](https://appshunter.io/ios/app/obd2-car-scanner-pro-elm327/id6802159481) | 4.5 (2) | Free | Utilities |
| [OBD2 Logger](https://appshunter.io/ios/app/obd2-logger/id6766004425) | — | Free | Utilities |
| [Fixlith Scan - OBD2 Car AI](https://appshunter.io/ios/app/fixlith-scan-obd2-car-ai/id6760207031) | 5.0 (1) | Free | Utilities |

## More apps by Osman Cengeri

- [Pobo: Jump & Run Adventure](https://appshunter.io/ios/app/pobo-jump-and-run-adventure/id6817347035)
- [ChargeWatt: Charging Speed](https://appshunter.io/ios/app/chargewatt-charging-speed/id6820282553)

All apps by Osman Cengeri: https://appshunter.io/developer/1807592099

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*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 2026-10-28.*