The app uses data to load the map and the route. However, please don't turn off your data connections even after you've finished loading to increase the accuracy of your location, as, depending on your device and available services, Bikemap uses a combination of cellular, Wi-Fi, Bluetooth, and GPS signals to determine your location. If you're not within a clear line of sight to GPS satellites, your device can determine your location using crowd-sourced Wi-Fi5 and cell tower locations or iBeacons.
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