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This application is for London Congestion Charge warning system. When you turn it on GPS by touching the button on the bottom toolbar you will be activate warning system on iPhone. Then, As long as the application running and your phone is able to receive gps signal then application will check your location and Congestion Charge zone entry points. If the distance between your location and congestion charge zone less than 1 mile than you will see Red Alert message on the screen and if you turn it on audio alert than you will hear 3 different audio alert for 0.2, 0.5, 1 mile distance. You could see all of your location changes by clicking log button. So, You will see all of your location changes and congestion charge zone annotations on the same map. (Continued use of GPS running in the background can dramatically decrease battery life.) (Due to GPS signal level this application should use only to warn user. We have no responsibility to unpaid congestion charge. You should check Red Congestion charge entry warning sign on the road by yourself.) *** All functions of this application included with it's price. So, you are not going to pay any in-purchase costs like other application ! ***
