Not only are some Wi-Fi network passwords obscenely difficult to remember, but if you're the type to use the same password in multiple places, you most certainly feel a tinge of anxiety when a friend asks to connect to your network. With Apple has added a pretty cool new feature., however,
When you attempt to connect to an unknown Wi-Fi network, you're instructed to hold the iPhone or iPad next to another iOS device or Mac that is connected to the network. You'll need to have the person you're sharing passwords with as a contact in address book.
Essentially, a dialog box similar to the AirPod pairing prompt will show up on a nearby device, asking the network owner if he or she would like to send the password. If approved, the password is sent to the connecting device and auto-populated without either user having to type a single character.
On a Mac, a notification in the top-right corner will ask if you want to share your Wi-Fi info. All devices involved will need to be on iOS 11 and macOS High Sierra.
Pretty neat, right?