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The basic idea...

"The basic idea behind open source is very simple. When programmers on the Internet can read, redistribute, and modify the source for a piece of software, it evolves. People improve it, people adapt it, people fix bugs. And this can happen at a speed that, if one is used to the slow pace of conventional software development, seems astonishing...
...The Open Source pages exist to make this case to the commercial world."    - Introduction to Open Source -

* CrNote secured data and notes

market download Now Free! no-ads (ever)!

Source code (GPLv2) available at

General purpose encrypted note-taking, wallet and data storage app.

* 256-bit AES encryption
* Fully compatible with OpenSSL (aes-256-cbc) encryption engine
* UTF-8 Unicode support
* Individual files with individual passwords
* Password and Pattern based encryption options
* Tools to encrypt/decrypt files
* Embed files into a CrNote file
* Insert photos from camera directly
* Secure configuration
* Secure storage mode double encrypts files stored on SDCard
* Multiple backups
* Random text/hex/base64/number generator
* Wallet-style (CrNote) format or flat-text notes. Useful for:
** Storing passwords, files and photos
** On-the-go journalists and authors who want to write pieces of work securely
** General notes that need to be secured
* Raw file encrypt/decrypt tools
* Search functionality
* Optional online syncing with open API
* Planned: embedded file launchers, insert video/audio captures.

This version works from Android 2.1 onwards.

Your passwords are never stored anywhere, so don't forget them!

* Google cloud backup of configuration (only the device key - everything else is encrypted locally).
* Access to if you purchase online syncing to our services for secure storage of your files. Alternatively you can specify your own server which supports the CrNote Web API.
*** If you prefer no-network capability, download "CrNote X" which is a pure offline version of CrNote.

SDCard read/write permission:
* only used to access /sdcard/crnote for the storage of your files.


We're adding more features by the day. Visit for details, instructions and support.

Recent changes:
Fixed file encrypt tool

Content rating: Everyone

Author: F CUBED
Version: 1.0.1
Market link:
Web site:

Source code:
Code license:
Market downloads: <50
Market rating: 4.7 / 5.0
Category: Top:/Applications/Productivity

Added: 2013-06-13
Updated: 0000-00-00
Hits: 1149

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