Notebook allows you to mark specific notes as private. While this does not encrypt the content of your notes, this is an easy way for you to protect what's inside of your notes from others if/when you ever lend out your iPhone/iPod touch.

Marking a Note Private

Inside of a note, the toolbar contains a lock icon. Tap this icon to mark a note as private.

Once your note is marked as private, the private note toolbar icon will show a locked icon:

Now (depending on your settings as described below), your note will appear as locked in the notes list and you will be required to enter in the passcode before viewing it again:

Setting a Passcode

To set up a passcode to protect notes marked private, go into Notebook's Private Notes settings (Settings -> Private Notes).

In the "Private Notes" section, choose between four display options:

Show - Both the title and content of the note will be viewable without entering a passcode.

Show Title Only - Only the title will be viewable in the notes list. To view the content of the private note, you must enter in the passcode.

Mask - This will only display a lock icon in place of the note's title in the notes list. To view the title and content of private notes, you must enter in the passcode.

Hide - Private notes will not be listed at all in the notes list. To allow them to appear again, you will need to choose one of the less-restrictive policies above.

Note: - If you have a passcode set and attempt to change your view policy to a less-restrictive policy, you will be prompted to enter your passcode first.

To set a passcode, use the "Set Passcode" in the Private Notes settings screen.

You'll then be prompted to enter a 4-digit passcode:

Once you've set a passcode, you can change it, clear it, or reset it.

Change Passcode - You'll be prompted to enter in the old passcode before being prompted for a new passcode.

Clear Passcode - This will remove the passcode entirely so that private notes can be viewed without entering a passcode. You will be prompted to enter in the old passcode.

Reset Passcode - USE WITH CAUTION - This will reset your passcode but also delete any protected notes stored in Notebook. Use this only as a very last resort if you have forgotten your passcode. Because this is fairly destructive, you will be asked to verify that you really want to do this by entering a confirmation passcode.

Note: If you synchronize with Toodledo, this action will not delete your note on Toodledo.com. You will have to re-enter your Toodledo account information into Notebook, but you'll be able to restore your private notes.

Toodledo Integration

Toodledo.com does not directly support private notes. However, if you view a private note online with Toodledo, you'll see a "---- PRIVATE NOTE ----" tag at the very bottom of your note. This is needed to indicate to Notebook that the note should be marked private.