(1) defines car current location on the map and saves it
(2) sends notification SMS to your smart phone to remind you about parking expiration time.
You can choose when you prefer to receive notification: immediately, or 1, or 12, or 24 hours prior to expiration parking time (the time would be retrieved from selected parking sign). You can also assign specific time you wish for notification from the calendar pop-up.
Very useful feature of this app is receiving notification when alternate street parking and meter's rules are suspended due to holidays or extreme weather condition.