A mobile billboard messaging app and non-transitory computer readable electronic storage medium method includes a computer database electronically storing merchant/advertiser and user information in communication with a software application running in a mobile device of the user, the mobile device having location identifying technology, a display screen and Internet connectivity capability. The system displays messages logically related to a user's preferences from an advertiser on the display of a user's devices when the user device is in a given location radius when correlated with user's preferences. Where a correlation is found, at least one message from the advertiser is displayed. The message is triggered when the device enters within the given radii from the advertiser. When triggered, the messaging app provides relevant real-time promotions, deals and coupons related to the user preferences. The mobile billboard displays target messages based on both the user's preferences and the user's geographical real-time location.
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