A new combination of iPhone app and plug-in adapter from Automatic to read data from your car's onboard diagnostics (OBD) port turns virtually any car manufactured after 1996 into a connected car, providing detailed data on your driving habits and cost of driving (via The Verge).

automatic
The OBD-II data port is a standard feature on all modern cars, providing access to fuel, mileage and engine data. Plugging in a small $69.95 reader allows this data to be transmitted via Bluetooth to your iPhone as you drive. The app then analyzes this to log a range of data, including fuel efficiency, driving style and engine performance. The app then combines this data with GPS info and an online database to tell you the cost of every journey you make.

The hardware unit connects to a car's OBD-II Data Link Connector — an often-overlooked data port that's been standard on every car since 1996. Through the data link, Automatic has access to fuel, mileage, and engine information, which it sends to your phone through its Bluetooth antenna. From there, the app pulls in GPS, fuel pricing, and map data to build a comprehensive picture of every drive you take. When you stop to fill up, Automatic uses geolocation data to determine which gas station you're at, then uses its own database of stations and daily prices to calculate how much you paid.

automatic-reader
Audio pings tell you when you are braking sharply or accelerating hard, driving behaviors that can increase gas mileage by a third. The app can also read and reset "engine check" codes, allowing you to determine whether that annoying light on your dash is something serious or trivial, and allow you to switch it off again without the need to visit a mechanic.

Automatic also includes a "crash alert" system, using the iPhone's accelerometer to detect certain types of crashes and automatically call 911 to report name, location, and vehicle description.

Automatic Link is not the first product to offer access to ODB data on iOS devices, but it does appear to offer a more complete feature set and polished user interface than has been seen on products released to date. Automatic Link launches in May, with pre-orders available now.

Related Forum: iPhone

Top Rated Comments

notjustjay Avatar
167 months ago
Very interesting... There are so many warning lights on my dash that I don't know what they mean at all... $70 is more than I want to pay, but given how much it costs to fix something when it brakes, I think it might be a worthwhile purchase if I can do preventative maintance (is it actually any cheaper?) or something...

Question: how is the accessory powered? Does the OBD-II power or does the accessory have a battery? If it has a battery, how long does it last? 2 weeks? More? Less?

Yes, the OBD2 port provides power when the car is running.

It would cost about the same to simply buy an OBD2 reader from an automotive tool shop. It wouldn't be as fully featured, but if all you want to know is why your check engine light is on, it's a good tool to have. Some shops will charge $25-50 just to do the diagnostic, and it could be for a reason as simple as you forgot to screw in the gas cap all the way tight.
Score: 3 Votes (Like | Disagree)
madsci954 Avatar
167 months ago
Why no iPhone 4 support? Only 4S and 5. Does the 4 not have bluetooth?

And why no diesel support? Page mentions only gasoline.
Probably needs BT 4.0, which is in the iPhone 4S and 5. The iPhone 4 only has BT 3.1.

Edit: After looking at their website description: "Using Bluetooth 4.0 technology and sophisticated energy-saving algorithms, the Automatic Link minimizes your phone's battery consumption."
Score: 1 Votes (Like | Disagree)
notjustjay Avatar
167 months ago
And where exactly can this OBD2 connector be found in a car? I don't see any sign of a port anywhere.

Somewhere in the driver side footwell. Sometimes it's pretty visible if you put your head at the seat level and look around, other times it's partially hidden. But if your car is newer than 1996, it definitely has one. It took us a while to find it on my brother's Honda Civic, but there it was to the right of the gas pedal.
Score: 1 Votes (Like | Disagree)
madsci954 Avatar
167 months ago
And where exactly can this OBD2 connector be found in a car? I don't see any sign of a port anywhere.
Google "OBD2 port location" and the make/model of your car. They are usually under the steering wheel column.
Score: 1 Votes (Like | Disagree)
0815 Avatar
167 months ago
Autozone, and I assume other auto parts stores, will read your error codes for free.
This does so much more than just reading the error code for you.

The true value of this package is in the software and the features they added to the app that make use of the geolocation, getting automatically the price you payed for the gas, the accident detection/emergency calls, .... etc.

It is probably not 100% innovative, nothing groundbreaking new, but it is combining many existing technologies into an easy to use package that runs in the background without you noticing it and lots of software features. (Just works, no interaction involved).

I pre-ordered one since I don't think any other competing offer has the same easy use and full feature list wrapped in a beautiful app.



There are ODB2 dongles that work fine with iOS, but they use Wifi and a web interface instead of bluetooth. There are even a few apps in the app store that take advantage of this. However, the system is clunky (requires manually setting IP and network info), and costly.
This is what sets this package apart from the others.
Score: 1 Votes (Like | Disagree)
thacube Avatar
167 months ago
Just ordered one for myself and one for my dad
Score: 1 Votes (Like | Disagree)

Popular Stories

Apple Logo Top Half

Early iOS 26 Software Leak Uncovers Dozens of Upcoming Apple Features

Monday December 15, 2025 3:05 pm PST by
Software from an iPhone prototype running an early build of iOS 26 leaked last week, giving us a glimpse at future Apple devices and iOS features. We recapped device codenames in our prior article, and now we have a list of some of the most notable feature flags that were found in the software code. In some cases, it's obvious what the feature flags are referring to, while some are more...
apple beta 26 lineup

Apple Leak Confirms Work on Foldable iPhone, AirTag 2, and Dozens More Devices

Monday December 15, 2025 2:05 pm PST by
Last week, details about unreleased Apple devices and future iOS features were shared by Macworld. This week, we learned where the information came from, plus we have more findings from the leak. As it turns out, an Apple prototype device running an early build of iOS 26 was sold, and the person who bought it shared the software. The OS has a version number of 23A5234w, and the first...
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Features Leaked in New Report, Including Under-Screen Face ID

Tuesday December 16, 2025 8:44 am PST by
Next year's iPhone 18 Pro and iPhone 18 Pro Max will be equipped with under-screen Face ID, and the front camera will be moved to the top-left corner of the screen, according to a new report from The Information's Wayne Ma and Qianer Liu. As a result of these changes, the report said the iPhone 18 Pro models will not have a pill-shaped Dynamic Island cutout at the top of the screen....
iOS 26

iOS 26.3 Beta 1 Features: What's New So Far

Monday December 15, 2025 4:23 pm PST by
Apple is testing iOS 26.3, the next version of iOS 26 that will launch around January. Since iOS 26.3's testing is happening over the holidays, it is a smaller update with fewer features than we've seen in prior betas. We've rounded up what's new so far, and we'll add to our list with subsequent betas if we come across any other features. Transfer to Android Apple is making it simpler...
Apple Foldable Thumb

Leak Reveals Foldable iPhone Details

Monday December 15, 2025 9:09 am PST by
The first foldable iPhone will feature a series of design and hardware firsts for Apple, according to details shared by the Weibo leaker known as Digital Chat Station. According to a new post, via machine translation, Apple is developing what the leaker describes as a "wide foldable" device, a term used to refer to a horizontally oriented, book-style foldable with a large internal display....
iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
apple iphone air battery pack

Apple Aims to Boost Popularity of iPhone Air 2 in Two Ways

Tuesday December 16, 2025 11:06 am PST by
We have been covering iPhone 18 Pro, iPhone 17e, and iPhone Fold details from The Information's report about future iPhone models, and next up is the iPhone Air 2. The report says that Apple aims to make the iPhone Air 2 more attractive in two ways. First, Apple is apparently considering adding a second rear camera to the device, which would resolve a key limitation. The current iPhone...
airpods max 2024 colors

AirPods Max 2 Likely to Offer These 10 New Features

Monday December 15, 2025 7:41 am PST by
Apple released the AirPods Max on December 15, 2020, meaning the over-ear headphones launched five years ago today. While the AirPods Max were updated with a USB-C port and new color options last year, followed by support for lossless audio and ultra-low latency audio this year, the headphones lack some of the features that have been introduced for newer generations of the regular AirPods and the ...
maxresdefault

Apple Developing iMac Pro With M5 Max Chip

Tuesday December 16, 2025 7:30 am PST by
Apple is developing a high-end iMac featuring the M5 Max chip, according to information from leaked internal software. Subscribe to the MacRumors YouTube channel for more videos. The finding comes from leaked kernel debug kit files used by Apple engineers. These kernel debug kit files enumerate unreleased Apple hardware by internal identifiers, such as codenames and platform names, and they...