UK ANPR (automatic number plate reader). Automatically reads European style license plates on the iPhone or iPad, no information is sent to the internet so no data connection is needed.
You can save plates in a PlateList.csv file that you can read and edit via iTune FileSharing.
The app will tell you if a license plate is in the PlateList.csv file by changing the colour of the decoded plate string.
The app has button to read black on white plates and white on black plate.