Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified either from the applications directly or from your own text editor. Evernote: Organize All Your Notes Into Categorized Notebooks. Available for Windows, Mac. Secure notes constitute an interesting side benefit to Keychain that is not obvious, since you actually need to enter the inner sanctum of your Mac's Keychain Access application to use the feature. So you spend less than $20 to get the app, and then it's yours forever, at least, until the next major version if they decide to charge for it. With pwSafe, you get simple and secure password management for all of your login credentials, bank accounts, credit cards, emails, secure notes, and more.
If you're signed in to iCloud with a Managed Apple ID, you can't lock your notes.
Before you can lock your notes, you need to create a password. Make sure you create a password that you can remember easily by giving yourself a password hint. If you access your iCloud notes on more than one Apple device, you'll use the same notes password to lock and unlock all of them. If you forget your password, Apple can’t help you regain access to your locked notes, but you can create a new password to use for locking future notes.
You can create a password on your device in Settings or in the Notes app. After you lock a note, it's automatically protected with your password on all of your devices. If you use Face ID or Touch ID to unlock notes on your other devices, you must enter your password, then enable Face ID or Touch ID on the device you're using.
If you enable Face ID or Touch ID for your notes password, it adds the encryption keys used to encrypt your notes to your keychain, which can be accessed with your device passcode. This means that anyone with your device passcode can access your locked notes. For maximum security, you can opt to not enable Face ID or Touch ID for your notes password.
Whether your note has an image, scanned document or list of important information, it's easy to keep it safe with password protection. You'll see a Lock icon next to each note that's locked. Until you enter your password, or use Face ID or Touch ID, you will only see the title and the last date on which the note was edited.
When you lock your note, it will stay open and you'll see the Lock icon at the top of the screen. You can hide the note's contents when you tap the Lock icon .
Your locked notes stay open for several minutes, making it easy for you to jump to another note, copy and paste information from other apps, and more. If you close the Notes app or your device goes to sleep, the note is locked again.
When you remove a lock from a note, it's removed on all of the devices that you're signed in to with the same Apple ID.
You can only lock notes on your device and notes in iCloud. You can't lock notes that have PDFs, audio, video, Keynote, Pages or Numbers documents, or notes that use IMAP to sync with accounts, such as Yahoo, Gmail and Hotmail. You also can't password-protect notes that you share with someone else. If you want to stop sharing a note, open the note, tap the Add People button , then tap Stop Sharing.
You need your previous Notes password in order to change your Notes password. Here's how:
If you don't know your previous Notes password, you can reset it, but it won’t give you access to your old notes. A new password will let you password-protect any notes you create going forwards with the new password.
To unlock a note, you need to enter the password that it's locked with. If you forget the password, Apple can't help you regain access to your locked notes. You can create a new password, but this won’t give you access to your old notes. A new password will let you password-protect any notes that you create going forwards with the new password.
If you have multiple passwords, you won't be able to tell which password you should use when you look at your Notes list. When you open a note locked by your old password but you enter your current password, you'll see an alert that you entered the wrong password with a hint for your old password. If you enter the correct old password, you get the option to update that note's password to your current one.
Here's how to reset your Notes password: