You can add more. If you create a tag on a device with iOS 15 or iPadOS 15 installed, this tag will appear in their "Memos" when the versions of your other Apple devices are not lower than the latest versions of iOS 14, iPadOS 14 or macOSBigSur. If your other devices use an earlier version of the software, the marked memo will be hidden.

You can add labels anywhere in the memo, including the title. To add a tag to the memo, type the tag name after #, or choose a tag from the suggestion menu above the keyboard. The text will change color to indicate that the label has been added. You can also use ApplePencil to tag graffiti on the iPad: just write # and tag name in the memo.

The tag name must be a continuous word, but you can use hyphens and underscores to extend the tag name, for example, #gardening-supplies. You can add multiple tags to the memo, and any tags you create will be automatically added to the folder list in the tag browser.