Add-on GPS modules for the iPad and iPhone
After flying with iPads and iPhones ourselves and talking to many pilots who also do, we’ve concluded there are those who’ve had the internal GPS lose its location—and those who will. The issue isn’t accuracy, so much as reliability. Some apps purposely don’t offer items like georeferenced approach plates because they don’t trust the GPS. But that may all change. There are add-on GPS units for the iPad/iPhone hitting the market. Two of the first are the plug-in Bad Elf and the Bluetooth GNS 5870 MFI.