The is not a gimmick. It solves real problems for several professional communities.
Several apps are available on the iOS platform that can assist in finding or recovering WPA keys. These apps typically work by scanning the network and then providing information about connected devices and network settings, including the WPA key. Greek Wpa Finder Ios
You may never look at a printed Greek menu, an old church sign, or a weathered monument the same way again. The is not a gimmick