Write me an Android app

ConstructionHelp Android mobile app on the Powertech Google Play Market account. App would have to have the following particulars, in the order described below. The purpose of the app is to be of help to the CEO's of small 1-10 employee construction companies do their jobs more effectively & give them some help in a profitable but also cheap way that's affordable even to the poor. Must be able to create a client list with maybe 5-10 or more clients to it, with each client having 3 bits of information stored about it, which are explained below. 1) client name & business name & telephone number 2) Client address. Hopefully that link would send the user to Google Maps where they would then be able to hunt down the house from their location. I'm pretty sure that all android phones have google maps on them so you could just input the address in the Construction Helper app and click a button that would bring up Google Maps with that address inputted. As I understand that is a fairly easy thing to code for a software mobile app dev. 3) A spot where the user inputs what must be done for that client. What are the particulars of that client's needs. Such as: "must mow only front lawn for $60", or, "Paint all trim on big suburban house for $1500." Perhaps "Paint all trim and all siding for $3500, but do not paint the outhouse or shed" the screen would have the name of the app across the top, then there would be the 1 section, then the 2 section, then the 3 section, and that would fill up the whole screen