Starting with iOS 9.3, Apple added the ability to set a password for notes in the iOS app of the same name. Since Notes often contains sensitive information such as bank account numbers, health data, and even personal diaries, it’s surprising why password protection was not provided in the beginning.
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To set a password for Notes, you need an iOS device with iOS 9.3 or higher installed.
It is worth noting that you can password-protect notes only if Notes are saved locally on the iPhone (iPad) or synchronized with iCloud (Settings → iCloud). For example, if you sync notes with Gmail (this is configured along the path Settings → Passwords and Accounts), the option to protect such notes will be unavailable.
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How to password protect a note on iPhone and iPad
one… Open the app Settings and go to section Notes…
2… Select item Password…
3… Set a password. If desired, activate the switch Using Face ID (Touch ID) to use the face sensor (fingerprint) when opening a note.
four… Open the app Notes and create a new note.
five… In order to set a password for the created note, click on the button with the image of three dots in a circle in the upper right corner and in the list of options select Install protection…
Keep in mind that a note that is locked in this way gets a password protection option, but while you are in Notes it is unlocked. This is indicated by the inscription “No blocking “ and an icon depicting an open lock.
To lock the note, click on the lock icon.
6… Password-protected entries are indicated with a padlock in the note list. To open a password-protected note, click on the note itself, enter the password, or use Face ID / Touch ID.
If you have forgotten the password for locking notes, then you can reset it according to this instruction.