Phone app

Codebook logo Codebook is a secure notebook for for iPhone, iPad, and iPod Touch that protects your sensitive information with 256-bit AES encryption.

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Screen1 login

No-Nonsense Security

Nobody gets in but you! We use robust, peer-reviewed and open-source AES-256 encryption along with the PBKDF2 algorithm to protect your notes. None of your data is ever stored un-encrypted. The login screen provides an option to turn off password masking, and a numeric keypad.

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Edit with Ease

The first line becomes your document’s title. Tap out meeting notes, ideas, diary entries, suh-weet song lyrics, or copy-and-paste external documents. Codebook saves any changes to the note you are editing every few seconds to ensure long editing sessions can’t be lost due to interruption.

The new note button at the top of the view makes it easier for you to copy down a new idea quickly. The trash button lets you delete something while you’re looking at it. You can also quickly change your preferences, search for and jump to text in your note, and share a note via email and/or encrypted PDF.

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Sync with Dropbox™

Our Sync feature allows you to securely backup your encrypted database to the popular Dropbox cloud storage service. Our replication technology, Ditto, allows you to use this feature to share your database with as many devices as you have running Codebook!

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Your Notebook

Following the example of the Notes application, Codebook maintains one listing of your notes and sorts them by date by default. If you like, you can sort by creation date, modification date, alpha-numeric, or manually sort your notes. Each entry is displayed with the first line as the title, a preview of additional text, and either the creation date or modification date.

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Search Your Notes

Once you’ve got a lot of notes, you’re going to want to search back in time! The Search bar at the top of your notes list will search every note you’ve created for the string you enter.

But that’s not all: in Codebook 1.6, you can now search within a note and jump directly to a particular passage.

Editing landscape

Device Rotation

Typing for a while can be tough in portrait orientation. Codebook now fully supports landscape orientation for editing notes, just turn your iPhone or iPad on its side and the view will rotate and expand accordingly.

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Configurable

Codebook may be an opinionated piece of software, but certain minor adjustments can make all the difference depending on how you use the app. Version 1.6 allows you to adjust the locking behavior, the appearance of your notes, how they are sorted and displayed, and whether data on the Pasteboard is made available to other apps after you leave Codebook.

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Share a Note as Encrypted PDF

If you need an easy and secure way to send someone a note from your Codebook, tap the Share button on a note and choose, “Mail as PDF.” Codebook lets you set a password on the PDF, enabling PDF-standard encryption to help protect it from prying eyes.