*Supported metrics are specific to vehicle make and model.
See our Features page for all the details.
Save a trip to the mechanic. Rev also reads and lists engine codes (like those responsible for your Check Engine/MIL light), and allows you to reset them as well!
Rev communicates directly with your vehicle's ECU via an OBD-II hardware device. The hardware
sends your data to Rev wirelessly—you can place your iPhone or iPod touch wherever you want. See our
Hardware page for all the details.
Here are some videos of Rev that we created:
And some videos created by Rev fans!
The iPhone is a powerful computing platform, and Rev takes advantage of all the iPhone's built-in technology to provide interesting metrics about your vehicle. These built-in metrics, available without the aid of additional hardware, include:
Rev gives you access to lots of vehicle metrics, communicating via an OBD-II device to extract highly accurate, real-time data directly from your vehicle's ECU. Those metrics include:
* The Fuel Consumption calculation may be inaccurate on some diesel vehicles.
** The Boost calculation may be inaccurate on piggyback turbo systems.
Data is great, but not very useful without a way to visualize it. Rev provides beautiful visual representations of everything about your vehicle:
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| Gauge: Displays a moving needle and LED display to show the current value of the metric. Themes allow you to select an empty backdrop or different gauge colors. A double-tap zooms in for best readability. | Graph: Displays current value over time. The graph units represent the proper minimum/maximum values for the metric. Acceleration values are also plotted against the selected metric. Double-tap to zoom in. | Accelerometer: view forward/lateral acceleration G's with local minima and maxima. | Map Track: use gps to correlate position on a track and forward acceleration. Red represents braking, green represents acceleration. |
With its polished dark interface, Rev is tuned to be highly visible and non-distracting, even at night.
You talked, we listened. Rev now provides data-logging. Here is a quick overview:
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| Record multiple metrics at the same time with the Multi-Metric Logger. | While recording, tap and hold to display the color key. Double-tap to set reference markers. | Any metric can now be recorded, reviewed and exported via email. |
Want to know why your Check Engine light is on? Rev will tell you why!
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| View the status of your Check Engine light. | View a detailed list of trouble codes and other diagnostic pending codes. | Reset your codes and turn off your Check Engine light with a single touch. |
Rev communicates with your vehicle via its physical OBD-II port. Interfacing with this port requires an OBD-II hardware device that supports the 802.11/WiFi interface on the iPhone and iPod touch.
DevToaster supports a variety of devices serving a variety of needs.
All devices supported by Rev have the following features:
Perhaps our most-asked question has been "is my vehicle supported?". We cannot answer that question exactly because each vehicle model is set up differently by its manufacturer.
In the United States, all vehicles sold after 1996 (1998 in Canada) were required to have OBD-II support. That means if you're driving a 1996 or later vehicle in the United States (1998 in Canada), your car is virtually guaranteed to be supported. The number of metrics supplied by the vehicle may vary, but you are certain to get the important ones required for the operation and evaluation of the vehicle (speed, RPM, etc) as well as support for reading and clearing trouble codes.
If your vehicle was made before 1996, or if you're just not sure whether or not OBD-II is supported by your vehicle, check with your local dealer or service garage.
The following manufacturers are proud to support Rev.
OBDKey WLAN is a vehicle interface providing a WiFi/Wireless LAN/WLAN radio interface for devices that have a WiFi compatible system. A single unit design with no cables or mechanical connectors.
September 2011 Update!
Now the OBDKey WLAN has been redesigned into an even smaller casing, similar the size of a box of matches at 65 x 44 x 25mm (2 1⁄2 x 1 3⁄4 x 1 inches). Power consumption has also been reduced by over 30% and the unit weight is down to a meagre 47 grams.
The new design still has all the features and reliable functionality of the original OBDKey WLAN and works as a “drop in” replacement for the original design.
Kiwi Wifi is a plug and play wireless device measuring only 2.75 x 1.25 x 0.6 inches. Kiwi Wifi comes attached with a 6 ft OBDII cable for easy installation. It is compatible with 1996 and later vehicles. Connecting to your iPhone/iPod touch is made by 802.11a/b/g connection in adHoc mode.
Rev's original hardware partner! The first OBD-II/WLAN product on the market. Manufactured in Germany under strict European Union standards. OBD2/EOBD interface for all protocols and WLAN (TCP/IP) computer/iPhone connection, with a maximum bandwidth of 54 Mbps. Includes all cables and protection bag.
Note: DevToaster no longer directly sells OBD-II hardware. Please refer directly to the manufacturers for sales and support.
If you encounter any troubles obtaining support from those companies, contact us and we'll help work it out.
If you previously purchased a CarCode-Muller ElmCanII-WLAN from DevToaster, we still provide support. E-mail
support@devtoaster.com for assistance.
Adding WiFi-broadcasting hardware to your automobile is probably a paradigm shift for most auto-enthusiasts. We ask that customers consider the following when purchasing WiFi automotive hardware for perminent installation:
It's right here: Rev2 User Manual (pdf). We also have the manual for earlier versions of Rev available if you need it.
We have investigated the hardware integration features of iOS 4.x.
However, after confidential discussions with Apple, we have concluded that WiFi is still the most reasonable option at this moment—both from technical and business perspectives.
We will not be supporting Bluetooth or Dock Connector OBD II connections yet—but we continue to persue this option and will announce any updates as soon as we have them.
Where appropriate, the user can choose to view sensor values in either Metric/SI or Imperial/US units.
The user chooses this on a gauge-by-gauge basis.
The units vary in size and features, but they all have similar performance and ease of setup when using Rev. Consult with the manufacturers' product pages for all the details.
Pay attention to their country of origin, too, as that will affect shipping cost and time.
If the OBD hardware device connects via ad-hoc networking, then your 3G/EDGE connection to the cellular network should still remain active. Most customers have had success with this provided they leave the "router" address blank in their network setup.
We highly recommend mounting your iPhone or iPod touch in a cradle with a car charger. Rev uses more battery power than most applications due to its significant amount of WiFi network usage.
Rev can only read metrics that are available via the OBD-II hardware. Likewise, the OBD-II interface hardware can only read metrics that are available via the OBD-II protocol supported by the vehicle manufacturer. If a metric is not available in Rev, the reason is because the vehicle does not present the data for that metric on the OBD-II bus.
Definitely not! The supported devices broadcast its own wireless network in Ad-Hoc (recommended for use with Rev), so your wireless connectivity is available wherever you are.
Rev communicates with an OBD-II/WLAN device to read vehicle OBD metrics. All cars and light trucks sold in the United States after model-year 1996 support OBD-II and will work with Rev. Manufacturers are only required to adhere to a subset of the OBD-II standard, so some advanced metrics may be unavailable for your vehicle, but Rev will dynamically adapt to the sensors supported by your vehicle.
We encourage users of Rev Lite (and all Rev versions) to provide feedback via our Feedback page.
'Metrics', in a scientific sense, refer to parts of a system of measurement. In Rev terms, 'metrics' are vehicle measurements.
