Important Android users, please update the Electric Imp app to version 4.5.4 or above — earlier versions will soon cease to work (see Known Issues).
Both development-oriented imp-enabled devices and BlinkUp™ fixtures for factory installation are added to your Electric Imp account using the Electric Imp mobile app. This app is currently available for both iOS and Android operating systems:
The iOS Electric Imp app is at version 4.5.5.
The Android Electric Imp app is at version 4.5.4.
Versions of the app older than 4.5.4 (released September 28, 2018) will no longer work starting on or around December 1, 2018. Underlying authentication mechanisms have changed; the legacy auth flow will be removed at that time. If you are running an out-of-date version of the app, it will (unless it is very old) warn you that you need to update.