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Codebook - Secure Notebook

Codebook - Secure Notebook
  • #: 226858
  • Price: free ($0.00) In Apple Store
  • Category: Productivity
  • Updated: 2011-03-30
  • Current Version: 1.5.2
  • 1.5.2
  • Size: 2.60 MB
  • Language: English
  • Seller: Zetetic LLC
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.1.3 or later
  • © 2010 Zetetic LLC
  •  Add to Favorite apps



Codebook is a highly rated secure and encrypted notebook application. It protects your secret notes, ideas, and personal information from unauthorized access by would-be crackers, malicious thieves and snoopy coworkers. Codebook keeps your information secure, yet always at your fingertips.

Codebook is only free to use for up to 10 notes. You can upgrade in the application to unlimited notes if you reach the limit for an additional charge. *


"Don't waste your time or money on similar apps. This one tops them all. Trust me" - App Store Review

"I've tried other secure file apps and this one works the best" - NJAPilot

"Support rocks! ...These guys set the customer service bar pretty high... Big props to Codebook!" - Mark in Cali


✓ 256-bit AES Encryption and secure password protection for 100% of your data

✓ Full text searching and sorting by last edit or create

✓ Easy first-line document naming

✓ Quick copy / paste between applications

✓ Elegant and easy to read font

✓ Native look and simple to use interface that is similar to built-in iPhone Notes application

✓ Email notes directly from inside Codebook

✓ Auto-save notes to avoid loss due to application interruptions

✓ Backup and multi-device synchronization using DropBox (note: requires in-App purchase of Unlimited version)


Codebook is the only secure notebook that uses open source, peer-reviewed full-database encryption technology. Called SQLCipher, the data store for Codebook uses established security practices like CBC mode encryption, PBKDF2 key derivation, randomized initialization vectors, and unique per-database salts. It further takes advantage of the widely trusted and peer-reviewed OpenSSL for cryptographic functions.

Even if you don't understand what all this security jargon means, you can rest assured that *we* do. Can you say the same about other notebook apps? Learn more at getcodebook.com.

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Rated 5/5 based on 3 customer reviews.


5/5 stars


This is really secure, it does what it says! Only one password, and your notes are secure and safe from anything, as long as you don't tell anybody else your password (duh).

5/5 stars

The best

Loved it!

5/5 stars


Love it! Defiantly does what it is suppose to!


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The information may be outdated (2011-04-29 03:26:40). For actual information go to iTunes

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