Can My iOS Device Be a GPS?
Probably. If you have an iPhone or a cellular-capable iPad, then you can start using GPS apps right away. Owners of wifi-only iPads or all iPod Touch models do not have this luxury.
However, external GPS receivers do exist. Some connect via bluetooth, while others can plug into the Lightning port on your device. We have no direct experience with any of these systems, so the best we can do is tell you that our research shows they are out there.…