It's possible to share notes on your iPhone with iCloud and collaborate with others in the Notes app. Here's how to do it.
You can send secret messages on your iPhone using the Apple Notes app! Just create a note, tap Share > Collaborate, give edit access to a friend, and start chatting in real-time—no third-party app ...
You can use your iPhone to scan documents, QR codes, and other files using the Notes app and your camera.