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  • #: 253832
  • Price: $39.99 In Apple Store
  • Category: Sports
  • Updated: 2010-01-14
  • Current Version: 2.0.2
  • 2.0.2
  • Size: 2.10 MB
  • Language: English, German
  • Seller: DevToaster, LLC
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • © DevToaster
  •  Add to Favorite apps



Rev is THE premier iOS application for auto enthusiasts. Rev monitors, records, and displays real-time data by interacting with your car's onboard diagnostic system. It can also check and reset "Check Engine" lights, trouble codes, and much more! DO NOT BUY THIS APP UNTIL YOU HAVE READ AND UNDERSTOOD THE FOLLOWING INFORMATION:

1. You *MUST* purchase an extra hardware device for Rev to work. The following devices are compatible:

- Kiwi Wifi, PLX Devices (www.plxdevices.com)

- ElmCanII-WLAN, CarCode-Muller (www.obd-2.net)

- OBDKey WLAN, KBM Systems (www.kbmsystems.net)

2. DevToaster *CANNOT* issue software refunds.

3. Before purchasing Rev, download Rev Lite from the App Store, to check compatibility with your car and with your OBD-II device. Rev Lite is a free, but limited, version of Rev which will show you which OBD-II metrics are available. Unfortunately, we are not able to tell you which metrics are available for your specific vehicle.

4. Further information, including the FAQ and the Rev manual, is available at: http://www.devtoaster.com/products/rev/

Rev 2.0 has a great suite of features:

- Display up to 5 metrics with Rev's customizable, drag-and-drop interface.

- Store details about your vehicle so Rev can accurately calculate horsepower and other metrics.

- Give any metric a redline value.

- Show values using metric or imperial units.

- Automatically adjust the minimum and maximum value displayed on a gauge.

- Check, translate, and reset engine trouble codes.

- Log data based on time or GPS coordinates.

- Record, display, and chart your cornering, braking, and acceleration G-forces.

- Help perfect your cornering habits by using the device's GPS to learn about your acceleration and braking using the GPS Track.

- Save time and money and check your emissions before going to the shop! Readiness monitors include 11 vehicle tests that your vehicle must have "ready" before it can pass emissions tests in most states. Rev will tell you which tests are supported for your vehicle, and whether or not they are ready. Some great info can be found here: http://www.wivip.com/monitor052108.pdf

- Use Rev to connect to PLX's extensible iMFD sensor system.

- Monitor the following metrics (availability depends on the vehicle itself):

Wheel Horsepower


Vehicle Speed


Fuel Consumption (may be inaccurate or unavailable on some diesel vehicles)

Boost Pressure (may be inaccurate on piggyback turbo systems or unavailable on some VW cars that advertise boost exclusively on proprietary protocols)

Engine Coolant Temp

Fuel Pressure

Calculated Engine Load

Throttle Position

Intake Manifold Pressure

Air Intake Temp

Timing Advance

Mass Air Flow

Fuel Level

Barometric Pressure

EVAP System Vapor Pressure

Fuel Trim

Proud Winner of the 2009 Popular Mechanics Editor's Choice Award!

"In the automotive sphere, there aren't nearly as many quality applications and even fewer that can deliver the information most gearheads crave. Thankfully, DevToaster has answered the call with Rev." AutoBlog

"For any car enthusiast with an iPhone this is a really cool and useful app." mp3Car.com

"This is by far the ultimate performance application." Auto India Magazine

As seen in:

- AutoBlog: http://bit.ly/1IRFGw

- The New York Times: http://tinyurl.com/rev-nytimes

- Motor Magazine: http://tinyurl.com/rev-motor

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Rated 2/5 based on 3 customer reviews.


4/5 stars

Good app, but can always be improved

I use Kiwi wifi module with the Rev app, and connecting the two was straight forward and worked the first time. I had about 2 weeks to play with it so far and I am pretty happy with it. I have connected to a Chevy truck and to VW. All features work nice, but my only complaint so far is the sampling rate seems low. The telemetry recording graphs have some abrupt changes: boost pressure graph for example.
Also - when will this app allow for some tuning or programming of the ECU?
Thanks for a nice app, but please don't stop here. Keep adding to this.

2/5 stars

Connectivity issues = fail

I purchased REV to work with my wifi Kiwi + iMFD device which plugs directly into my OBDII port in my car. While REV worked when talking to my car's ECU, it did NOT WORK as advertised when trying to talk to an additional Boost/Vac measurement device. I have a turbo charged car and this was the primary reason for purchasing REV, to get real time data of my Boost level.

Now I have also learned that there are no refunds from the App Store. So I can't get my money back from apple and I can't get my money back from DevToaster. This was a complete waste of money for me.

Also, the application FuzzyCar does all of the basic functions of REV, plus some it does not, and is free.

0/5 stars

DID NOT WORK and support is bad

I really wanted this to work. I tried Rev lite and everything seem to work ok, it made the network connection to the Kiwi Wifi, at indicated what parameters were available with my car. So I purchased Rev, a very expensive app at $39.99. Again it made the network connection and I was expecting good things to happen, it showed what parameters were available. I selected a few to get an actual reading, but nothing, they all read zero. There was no data being transferred. To be sure the Kiwi Wifi was working, I downloaded FUZZYCar for iPhone. It connected and provided the data readout that I hoped for in Rev. The Kiwi Wifi was working fine.
I emailed Dev Toaster a complete scenario and waited 3 days... and nothing. No response. I emailed again and got a very brief response. I replied and am still waiting.
There support is terrible and trying Rev lite will not guarantee that Rev will work for you.
I have never been this unhappy with an iPhone app.


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The information may be outdated (2011-05-04 16:41:44). For actual information go to iTunes

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