App to allow user to message to geographic coordinate and receive message when passing through that area. -

App to allow user to message to geographic coordinate and receive message when passing through that area. Would offer in the $60 to $100 fixed price range. Would like android app first and method to create iphone app GPS app milestones 1) Provide sample and agreed upon framework so can take on addn development locally. Show how to publish to Google play store, IOS app store 2) Show how to connect app to database real time (mssql is prefered, but postgress or mysql or other may be ok. ) 3) show how to scrape coordinates from other sites or provide gps coordinate db so can populate database with coordinates (ie taj mahal is gps coordinates...) 4) show how to add ads capability to app and lastly show how to set up app so could be a paid app ( ie 1.99 or something like that)