How can I turn my old iPhone 4 into a great (offline) bike computer?
May 13, 2014 8:24 AM Subscribe
I have an old iPhone 4 (running iOS 7) that has no sim card. GPS and wifi and all that still work fine and it's got plenty of space. I want to find an app that will allow me to download a big swath of map around my house for offline use, then stick the phone in a bracket on my handlebars and use it as a bike computer to tell me speed, mileage, route, etc. Ideally it would show me where I am on the map as I go, too. I'd gladly pay for the app if it is not free. Is this possible?