A secure iPhone notebook for people with secrets.

Do you need a place on your iPhone to keep secrets? An app where you can store sensitive meeting notes, ideas for a new project, or questionable poetry?

If you lose your iPhone or iPod Touch, you can count on Codebook to keep your secrets safe.

Get notified when it’s released:

Replace your other notes apps with this elegantly simple notebook that keeps all your data private, and just gets out of your way.

  • Ease of Use

    Familiar and uncluttered, Codebook offers a simple interface for finding and editing notes. Optionally order notes by creation or update time. Email notes from inside the application.

  • Peace of Mind

    Unlike some of the diary apps out there, Codebook doesn’t cut any corners, encrypting every piece of information you enter. No one will read your secrets if you leave it in a cab.

  • High Security

    Lots of applications make poor choices when implementing tough encryption algorithms that can leave your data exposed. We didn’t roll our own, Codebook uses OpenSSL’s peer-reviewed implementation of 256-bit AES encryption. In addition, we protect your password using PBKDF2 to make brute force attacks even more difficult. This is security you can trust.

  • More to Come Soon

    We’ve got a lot of features planned for the future, including font and text-size preferences, and import and export.

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