FWIW, as much as I love technology; I have no cell phone. Life is just so much simpler without it and after having one on my hip 24/7 and talking to the boss while grocery shopping, at the video store, on Saturday and Sunday afternoons.....F@#! it.
Now I rely on smoke signals, tin cans and a long, long kite string. Every once in a while I fire up the old candlestick dial phone just to keep ol' mabel's job relevant in the deep recesses of AT&T. Don't tell her Ma Bell no longer exists. I fear the old girls ticker won't be able to handle it.
All of that said, I have encouraged others to d/l those apps and have used them. Used the goggles app for just this threads purpose (locating a particular beer) and it worked like a champ.