I recently bought a hand held GPS on the interweb but it went tits up after a couple of days so I managed to get my money back. The model I bought had a 1:50 000 Ordnance Survey map display that showed exactly where you were and the track you had just walked. If I wanted to delve into it an open the instruction book, I believe I could plot way points and lots of other techy things. All I wanted it for was to ensure I was in the right place and not on someone’s land I shouldn’t be on. I don’t want to use it in the Alps, the Lakes, wild Scotland or on the border between North and South Korea. In fact most of my walking will probably be within Essex with the odd excursion into darkest Suffolk. I have since found out that you can install a GPS app on smart ‘phones. I don’t have one. In fact my mobile is so old that the numbers on the keys are Roman numerals. Does anyone have experience of using GPS apps on their mobile especially an app that displays the route etc on a rolling Ordnance Survey map? Not knowing much about smart ‘phones I was wondering if I got a second hand one from "a bloke in a pub" and download an app on to it, do I have to have it connected to a network. In other words do I have to have it connected to a network for the apps to work?