4 Best Obd2 iPhone App

"This post includes affiliate links for which I may make a small commission at no extra cost to you should you make a purchase."

Download the Best Obd2 iPhone App on the Apple Store by clicking this Button

If you are looking for the Best Obd2 iPhone App to download for free, look no further.

Our expert panel of reviewers has tested dozens of apps and we have compiled a list of the 4 Best Obd2 iPhone App that passed our tests.

Check out our list of the 4 Best Obd2 iPhone App, tried and tested by our expert reviewers.

4 Best Obd2 iPhone App

1. Car Scanner ELM OBD2

Download the App on the Apple Store by clicking this Button
“See what your car is doing in realtime, get OBD fault codes, car performance, sensor data and more!
Car Scanner is a vehicle / car performance / trip computer / diagnostics tool and scanner that uses an OBD II Wi-Fi or Bluetooth 4.0 (Bluetooth LE) adapter to connect to your OBD2 engine management / ECU.
Car Scanner gives you a bunch of unique features:
1) Layout your own dashboard with the gauges and charts you want!
2) Add custom (extended PIDs) and get information, that was hidden from you by car manufacturer!
3) It can also show and reset a DTC fault code like a scantool. Car Scanner includes a huge database of DTC codes descriptions.
4) Car Scanner allows you to read free-frames (sensors state when DTC is saved).
5) Now with Mode 06 – you can get ECU self-monitoring test results. Helps you fix your car and helps keep repair costs down!
6) Check if your car is ready for emission tests.
7) Check all of the sensors at one screen
8) Car Scanner works with any vehicle that uses the OBD 2 standard (most vehicles built after 2000, but can work for vehicles as far back as 1996, check carscanner.info for more details).
9) Car Scanner includes a lot of connection profiles, that gives you some extra features for Toyota, Mitsubishi, GM, Opel, Vauxhal, Chevrolet, Nissan, Infinity, Renault, Dacia, Hyundai, Kia, Mazda, Volkswagen, Audi, Skoda, Seat, BMW and many others.
10) Car Scanner dashboard includes a HUD mode, that you can use to project data to your windshield.
11) Car Scanner provides a tool for very accurate acceleration measurments (0-60, 0-100, etc.)
12) Car Scanner can be used as a trip computer and can show you fuel consumption statistics!
13) For cars of the VAG group (Volkswagen, Audi, Skoda, Seat), built on the MQB and PQ26 platforms, encoding functions are available – setting hidden parameters of the car.
14) And one more thing – Car Scanner provides the widest variety of features for FREE across the App Store.

The app requires a Wi-Fi or or Bluetooth 4.0 (Bluetooth LE) OBD2 ELM327 compatible adapter (device) to work. ELM327 devices plugs into the diagnostics socket in the car ang gives your phone access to car diagnostics.
Recommended adapters brands: Kiwi 3, Viecar, V-Gate, Carista, LELink, Veepeak.
If you buy one of the cheap china OBD2 ELM327 adapters from ebay / amazon, then make sure it’s not marked as v.2.1. This adapters are supported, but they have lot’s of bugs.
PLEASE NOTE: Vehicle ECUs vary in the amount of sensors supported. This app can’t show you something, that is not provided by your car.

Attention “bad” adapters! We faced the problem, that some adapters (often cheep Chinese clones), can’t connect to the smartphone or the car. Some of them can even make your car engine work unstable, often lost connection, increase time lag when reading data.
So, we recommend you to use genuine ELM327 or recommended adapter brands.

Car Scanner ELM OBD2 is free but to unlock all the features, a one-time purchase or a subscription is required.

Under no circumstances will the developer of this application be held responsible for incidents resulting from the use and/or interpretation of the data in the application.

If you have any issues, you can always contact developer using Settings – Contact developer in the app or just send email to wp_soft@outlook.com

Car Scanner ELM OBD2 for iOS Terms of use can be found at https://www.carscanner.info/ios-tos/”

2. Carly — OBD2 car scanner

Download the App on the Apple Store by clicking this Button
“Carly is the most versatile OBD2 scanner with diagnostic insights, coding, and maintenance functions.
It helps over a million car owners on average save $500 a year. Test it yourself now!

Get the Carly app and the Carly Universal Adapter that access data through the OBD2 port of your car.

It works for Audi, BMW, Ford, Lexus, Mercedes, Mini, Opel, Porsche, Renault, Seat, Skoda, Toyota, VW, and almost all car brands in the world with an OBD2 port.

>> Every car is unique — specific features will vary with every model, build year, hardware, and software.
————

BASIC FEATURES INCLUDED IN THE (FREE) LITE VERSION

Health (OBD), Live Data (OBD), and Emission Check (OBD) enable you to have control over the most important systems — engine and transmission. Check if they work for your car.

ADVANCED FEATURES INCLUDED IN THE FULL VERSION (SUBSCRIPTION)

These are supported for the following car brands: Audi, BMW, Ford, Lexus, Mercedes, Mini, Porsche, Renault, Seat, Skoda, Toyota, and VW. Every car is unique, so specific features will vary with every model, build year, hardware, and software.

• CHECK THE CAR’S HEALTH AND SAVE MONEY •
With Carly car diagnostics, you’ll have the right scanner tool to read from all built-in electronic control units (ECUs), including engine, transmission, ABS, airbag, & multimedia, keep track of your car’s health, gauge the severity of problems, clear fault codes, and more.

• MONITOR LIVE DATA •
Live parameters or live data can help you take the guesswork out of understanding what your car needs and detect the fault origins.

• CODE AND CUSTOMIZE FEATURES •
Access hidden features already set by the manufacturer and customize your car to fit your needs. This feature is only available on certain car brands/models, and the coding options vary.

• PERFORM SIMPLE CAR MAINTENANCE INDEPENDENT OF THE WORKSHOP •
Analyze emission and engine gauges, change and register your car battery, perform an oil reset, and much more, all with your smartphone.

• DETECT MILEAGE MANIPULATION •
Car mileage manipulation is on the rise. Don’t get tricked. Use Carly to perform a used car inspection before buying.

All of your reports are automatically saved into your account in the Digital Garage.

————

HOW IT WORKS

Step 1: Check which features are available for your car model
Step 2: Order your Carly Universal Adapter.
Step 3: Plug the adapter into the OBD2 port and log in on this app to check what works for your unique car.
Step 4: Upgrade to the full app version — if available for your car.

THE CARLY UNIVERSAL ADAPTER – MOST ADVANCED OBD DEVICE

The OBD2 device was designed to support almost all car brands with an OBD2 port (built 2001 or later) and to enable advanced Carly features. The adapter comes with:
• A lifetime warranty
• Premium customer support
• A 14-day money-back guarantee

THE CARLY APP

The Carly app offers a free lite version. For some brands with supported advanced features, you get a full one-time health check, together with one error report, and one used car check report.
The full version works for BMW, Ford, Mini, Toyota, Lexus, VW, Audi, Skoda, Seat, Mercedes, Renault, and Porsche.

You can purchase a subscription for an individual car brand or for all car brands.

————

This is a yearly subscription. Payment is handled via your iTunes Account. Subscription automatically renews for one year if not canceled 24 hours prior to the end of the current period. The subscription can be managed in your Account Settings and the automatic renewal can be deactivated there.

Terms of Use: https://bit.ly/35Mxg5s
Privacy Policy: https://bit.ly/35Rruze”

3. OBD Auto Doctor car scanner

Download the App on the Apple Store by clicking this Button
“OBD Auto Doctor is the leading OBD2 car diagnostics tool in your pocket!

Ever wonder why the check engine light or MIL keeps going on? Check and reset the trouble codes with OBD Auto Doctor. With this OBD2 diagnostic app, you can communicate with your car’s OBD-II system quick and easy, and turn your mobile into a highly capable automotive scanner.

▸ OBD Auto Doctor is an ideal app for everyone interested in getting to know their car better. Whether you want to monitor vehicle data in real-time or reset the “check engine” light, this is a must-have tool and the only OBD-II software you need!

Capabilities and benefits:
• Read readiness monitor status to make sure your car is ready for emissions testing
• Read On-Board Diagnostic Monitors for advanced diagnostics
• Read Diagnostic Trouble Codes (DTCs), Freeze Frame, and clear the codes and MIL
• Monitor fuel consumption while you drive and save money on gas/diesel
• View OBD-II parameter and sensor data in real-time to detect abnormalities
• Monitor OBD-II sensor data in numerical or graphical presentation
• Support for multiple electronic control units such as engine, transmission, etc.

Some additional features:
• Send diagnostic data via email
• Record and send sensor data via email as .csv format
• Read Vehicle Identification Number, Calibration Identifications and Calibration Verification Numbers of ECU
• Build-in DTC database with over 18000 trouble codes including thousands of manufacturer specific codes
• Support for both imperial (English) and metric units

Check the Quick Start Guide to get started:
• WiFi adapters: https://www.obdautodoctor.com/OBD-Auto-Doctor-Quick-Start-Guide-iPhone-WiFi.pdf
• Bluetooth adapters: https://www.obdautodoctor.com/OBD-Auto-Doctor-Quick-Start-Guide-iPhone-Bluetooth.pdf

OBD Auto Doctor supports all cars sold worldwide that are compatible with OBD2 or EOBD. As a general guideline, your car is most likely to be OBD-II compliant if it fulfils one of the requirements listed below:
• USA: All cars and light trucks manufactured since 1996 (OBD2)
• EU, Gasoline: Registered in the EU after 1 January 2001 (EOBD)
• EU, Diesel: Registered in the EU after 1 January 2004 (EOBD)
• See https://www.obdautodoctor.com/faq for the OBD2 compatibility info for other countries

NOTE: OBD Auto Doctor requires a separate ELM Wifi OBD2 adapter (ELM327 compatible scan tool) or Kiwi 3, OBDLink MX+, Carista, Vgate, LELink, Viecar, Tonwon, Veepeak, MicroTech or UniCarScan Bluetooth Low Energy adapter to communicate with vehicle.

NOTE: Please notice that most of the features of the app require that your car supports them too.

▸ This app is free but to unlock all the features, a subscription is required. Check the app website for more information and differences between the versions.

Under no circumstances will the developer of this application be held responsible for incidents resulting from the use and/or interpretation of the data in the application.

If you have any issues or concerns, we are happy to help you out. Just send us e-mail to support@obdautodoctor.com.

Visit the OBD Auto Doctor website for more information:
https://www.obdautodoctor.com/

Terms of use: https://www.obdautodoctor.com/terms”

4. OBD Fusion

Download the App on the Apple Store by clicking this Button
“OBD Fusion is an app for your car that allows you to read OBD2 vehicle data directly from your iPhone, iPod Touch, or iPad. You can clear your check engine light, create custom dashboards, read diagnostic trouble codes, estimate fuel economy, and much more! OBD Fusion is also available for Apple Watch!

Is your check engine light on? Do you want to monitor fuel economy and usage in your vehicle? Do you want cool looking virtual dashboards on your iPhone or iPad? If so, then OBD Fusion is the app for you! OBD Fusion is used by professional mechanics, do-it-yourself mechanics, and vehicle owners who want to monitor their vehicle and daily driving habits. Drive smarter, improve your fuel economy, and keep your engine healthy!

IMPORTANT NOTE: You must have a Wi-Fi ELM327 compatible adapter, Veepeak BLE/BLE+ 4.0 adapter, Carista BLE adapter, OBDLink MX+, Tonwon BLE adapter, LELink BLE adapter, Viecar BLE adapter, Lonauto adapter, Vgate iCar Bluetooth 4.0, BAST BLE adapter, Kiwi 3 or 4, or compatible ELM327 Bluetooth LE adapter to use this app. OBD Fusion is not compatible with generic ELM Bluetooth scan tools. Checkout additional adapters here: https://www.obdsoftware.net/software/obdfusion

OBD Fusion supports all OBD2 and EOBD vehicles sold worldwide. If you’re not sure whether your vehicle is OBD2 or EOBD compliant, see this page for more information: https://www.obdsoftware.net/support/knowledge-base/how-do-i-know-whether-my-vehicle-is-obd-ii-compliant/. OBD Fusion can also connect to some JOBD vehicles through advanced configuration in the app. Please contact us for more details.

Electric vehicles (EVs) are not required to have OBD2 diagnostics since they are emissions exempt. If you are interested in using OBD Fusion on an EV, contact us first to inquire about support.

OBD Fusion is brought to you by OCTech, LLC, the makers of TouchScan and OBDwiz. Now you can get the same great features for your iPhone, iPod Touch, or iPad!

OBD Fusion has a ton of features including:
– Read and clear emissions-related trouble codes and your Check Engine Light (MIL)

– With optional enhanced diagnostic add-ons, you can read and clear enhanced trouble codes and fault lights on other modules such as ABS, SRS, etc. An enhanced diagnostic add-on is required for this functionality.
– Real-time dashboard display with fully customizable gauges
– Performance calculations for 1/4 mile and 0-60 mph track times
– Fuel economy MPG (US and UK), l/100km or km/l calculation
– Full diagnostic report that can be stored and emailed
– Real-time graphing of multiple signals
– Multiple trip meters

– Log data to CSV file and email CSV files
– Create custom enhanced PIDs
– Includes some built-in enhanced PIDs for Ford and GM vehicles
– Display Boost pressure in real-time
– Display Engine Power and Torque
– Display calculated Air-to-fuel ratio
– Display battery voltage

– Read freeze frame data

– Fully customizable units including English, Imperial, and Metric units

– Real-time graphing
– Over 150 supported PIDs

– Displays vehicle information including VIN and calibration ID

– Emissions readiness for each US state
– Find out if your car will pass emissions inspection
– Oxygen Sensor Results (Mode $05)

– On-board Monitoring Tests (Mode $06)

– In-performance Tracking Counters (Mode $09)

– GPS tracking – plot vehicle parameters on a map
– Integrated iCloud and Dropbox functionality
– Available in English, Czech, French, Italian, Spanish and Greek
– Manufacturer specific Enhanced Diagnostics are available for certain vehicles through In-App purchases.

** Continued use of GPS running in the background can dramatically decrease battery life.

OBD Fusion for Apple Watch includes the following features:
– View statistics about your last trip
– View quick information about your vehicle
– See where you parked your car on the map
– Set parking meter time

OBD Fusion is a trademark of OCTech, LLC registered in the U.S.”