Just how darned good is that?...

I love all this Technology we have access to. I'm no 'Techie', and I've found we don't need to be, all is needed is patience & research. Apps(for Phones) not the Person, they are so good. There is an App for everything. Sat-Nav App, TV signal strength App, Walking App, the one I have plots my Walking in the environment and then tells me-distance covered, route taken, Calories burned and time taken then shows the Walk in map form. I even set up the LV using a Spirit level App that beeps faster as 'Level' is attained. Do you have a favourite/useful/fun one?