Connect to a Lifekey.
Unlock or "wake" your smartphone and hold the Lifekey to the corresponding spot on your phone (see below).
You may need to hold the two devices together momentarily for the signal to be picked up by your phone.
You DO NOT need an app to scan a Lifekey device.
Lifekey uses the same technology you use to pay with your phone (Apple Pay, Google Pay, etc.,). If your phone can make payments by tapping, you can use Lifekey.
Most modern phones will work straight away, but there are exceptions (see list). For older iPhones (released before 2016) you can use the NFC scanner in the control center to scan.