Send secret messages on your iPhone using the built-in Notes app. Share and collaborate on notes for private, real-time chats ...

Want to send a message to someone but keep a little bit of mystery? Invisible Ink lets you do just that. Here's how to use it ...

On an iPhone, when you send a message via the Messages app and it ... You should be able to send full-size images and videos through the Messages app — again, messaging rates will apply ...