StandBy OS: Always on Display is a free iPhone app developed by Nishan Singh. It falls under the Lifestyle category and offers a convenient mode that allows users to view the time and date in large fonts and different styles. With this app, your iPhone can transform into a smart display.

To use StandBy OS: Always on Display, simply install the app and follow the tutorial to set it up. Once your phone is connected to the charger, the app will automatically start and activate the StandBy animation screen. You can apply various StandBy animations to enhance your charging experience and surprise your friends with an entertaining StandBy screen.