The 6 Best OBD2 Mobile Vehicle Diagnosis Apps

white subaru on mechanic's lift

The difference between a good and a bad OBD2 diagnostic app can be profound. There are quite a few of these apps out there, and getting stuck with an ineffective app can be very frustrating. In this article, we’ll walk you through some of the best OBD2 diagnostic apps available for both iOS and Android.

These tools eliminate the uncertainty and anxiety that the dreaded Check Engine Light can cause. Now you can check what’s wrong with your car with a simple ELM327 adapter and the application of your choice.

1. Auto Scanner ELM OBD2

Car Scanner ELM is an easy-to-use app that allows you to view any DTCs (Diagnostic Trouble Codes) your vehicle may have collected. The app has the ability to access vehicle statistics, as well as a digital dashboard that displays several key gauges and sensors. Some relevant gauges that you can access in the digital dashboard section of the app are the coolant temperature sensor, vehicle RPMs, and MPH.

The app is very well designed from a UI perspective, with a simplistic layout that won’t overwhelm you. The app also offers the option to enable dark mode, which is always a nice option to have.

The app has a paid Pro version, but the free version should be more than enough for most users who want to diagnose what’s wrong with their vehicle when the Check Engine Light comes on.

to download: Auto Scanner ELM OBD2 for: androidiOS (Free, in-app purchases available)

2. OBDelife

OBDeleven is one of the most versatile OBD diagnostic apps you can find. This app works for most vehicles under the VW/Audi umbrella and has a beautiful user interface. OBDeleven allows you to access your vehicle modules and clear fault codes in each individual. The app also gives you access to live data and advanced information such as transmission oil temperature.


The app also allows you to quickly Google any of the error codes via a handy one-touch feature. With OBDeleven, you can add multiple cars to your in-app garage, and even reprogram some of your vehicles’ basic functions for a fee. If you own a Volkswagen product, OBDeleven is an absolute must-have. The app is free to download, but you will need to purchase your own OBDeleven device to connect to your vehicle.

to download: OBDeleven for androidiOS (Free, in-app purchases available)

3. Info car

The Infocar app is packed with useful features and is available for both iOS and Android. This app has everything you would expect from an OBD2 diagnostic tool, but it also has a few nice surprises, such as a built-in tool for finding parked cars. Another very useful feature is the Blackbox, which acts as a dashcam but also allows you to store the data associated with the drive. The app also has a handy dashboard that even displays a battery voltage meter.

All live vehicle information is presented in easy-to-read charts with aesthetic graphics. The app also allows you to enter the specific make and model of your vehicle, giving you a main menu adapted to your vehicle once this information is captured. Infocar also offers a dark mode, but it’s not the typical color configuration, and it looks a bit odd in the end. Despite this minor complaint, the app is definitely worth checking out.

The app can be used with a universal device, but Infocar recommends using a proprietary brand device to get the most out of the app.

to download: Infocar for androidiOS (Free)

4. EOBD-easy

EOBD Facile doesn’t have a fancy UI like the other apps on this list, and too many of the features are reserved for the premium version. Anyway, the app is easy to use and if you just want to diagnose your car, this app will definitely do the job.

Again, the biggest downside to this app is that most of its interesting features are locked behind a paywall, but what makes it a solid choice is the fact that it works well as a standalone diagnostic tool. If you want a feature-packed feature without signing up for the premium version, you may want to look elsewhere. Meanwhile, don’t miss any apps to keep you safe in the car while downloading.

to download: EOBD Easy for androidiOS (Free, in-app purchases available)

5. Obd Arny

Obd Arny is a straight forward OBD2 app that works with any ELM327 adapter and lets you know your vehicle’s DTCs in no time. Easy to use and very clearly labeled, the app gives you access to live data from your vehicle, as well as access to diagnostic data charts. The menu to access and clear any error codes is very intuitive and easy to access.

All error codes are neatly arranged in a list and the button to clear the error codes is large and very easy to find.

Some of the more specific error codes and their descriptions are only available through the paid version of the app. The app will give you useful information such as how long you’ve traveled with the MIL light on and the number of warm-ups since the codes were cleared. The free version should be enough for most people who want to pre-diagnose their car before going to the store.

to download: Obd Arny for android (Free, premium version available)

6. OBD Auto Doctor

OBD Auto Doctor has a free version, as well as two different paid versions. The free version of the app allows you to verify DTCs and monitor readiness monitors. The other versions of the app require you to purchase them and cost $23.99 per year for the personal version and $37.99 per year for the professional version.

With the professional version, you can access the vehicle oxygen sensor monitors and the onboard diagnostic monitors. While the paid versions unlock many features, the free version is also suitable for non-professionals who want to dig deeper into what’s wrong with their vehicle.

to download: OBD Auto Doctor for androidiOS (Free, in-app purchases available)

Save yourself time and money – avoid unnecessary trips to the motorcycle shop!

All of these apps allow you to find out what’s wrong with your car, and give you the power to decide for yourself whether it justifies an emergency trip to the mechanic. These apps are also useful when you’re ready to buy a used car, as you can plug into the vehicle’s OBD2 port and immediately know if the seller is honest.

It wasn’t too long ago when diagnostic tools were mythical gadgets owned only by experienced mechanics, but now anyone with a smartphone and a Bluetooth adapter can easily figure out what’s wrong with their vehicle.

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