Note: This app is iOS 7.0 ready. This simple but amazing app would give you full offline map support in Portsmouth. If you are just travelling or even residing to Portsmouth, you should be sure that you have this small tool with you. Why? Simple! Because this is very advanced map with 17! Zoom level maps for Portsmouth. Maps are fully offline, so you dont need a costy internet roaming to digg arround, and in case you are lost to check where are you in offline map.