Invisible ink messages are a fun and secretive way to send messages to your friends. You can use the Notes app on your iPhone to create and send invisible ink messages. To see an invisible ink message, simply open the Notes app and tap on the message. The message will then appear in black text.
Invisible ink messages can be used for a variety of purposes. You can use them to send secret messages to your friends, or you can use them to keep track of important information. Invisible ink messages can also be used to create fun and interactive games.
