MyTetra is a cross-platform app designed to make gathering any information into a full-featured note organizer a simple process.
Any entries (notes, articles) you save are organized in a tree structure. MyTetra's interface is a little dated and plain, but the lack of polish is made up for with functionality. You can create notes by designating them by author, title, tags, URL, and message. Also included are several formatting options like line numbering, tables, paragraph alignment, etc. If you are a prolific gatherer of information, then the search function will make locating a specific note a breeze via search filtering
MyTetra also allows you to edit notes, print or save them as PDF documents. You can additionally modify the default data and trash directories, apply password protection to the entire application, data sync at startup among a few other useful options. There are some typos here and there most notably during set up when it offers standart instead of standard for example. But that doesn't take away from the fact that it worked well during testing.
Infinite ramify tree for notes group
Arbitrary sorted notes at his branch
Arbitrary sorted branches at parent branch
Copy/Paste for notes and branches
Customizable trash for recovering lost data
Notes encryption by RC5-32/12/16 + PBKDF2
Synchronization over any cloud storage system or version control system (i.e., Git on GitHub.com)