Simple GPS App

The app I need made should be fairly simple. what I need it to do is use some form of mapping ability google maps or whatever, and I need the app to pull location constantly or at intervals of every 5 min. the reason for the intervals is because i believe it would help save battery life and give user option to choose. pls correct me if i'm wrong on the battery life. On the map i need it to have lines mapping the route if setting is on constant, and if it is set on 5 min intervals, it needs to have dots to show where they were at that time) when user presses one of the dots it needs to show the time that the location was pulled and the address of where user was. (address can be an aproximate range of number like on standard map app. for example: 100-200 4th ave south) so there needs to be 2 pages. 1 with the settings and another with the map and route. also. user needs to be able to save logs and refer back at later times. i believe this is all I need for the app. but some small changes to above description may occur.