As Noted is described as 'simple and powerful personal note taking environment. You can edit and manage your notes with your iOS or Android smart phone or tablet, or on the desktop with the As Noted extension for Chrome' and is a Note-taking Tool in the Office & Productivity category. There are more than 100 alternatives to As Noted for a variety of platforms, including Windows, iPhone, Android, Mac and Online / Web-based. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Standard Notes or Microsoft OneNote. Other great apps like As Noted are Google Keep (Free), Evernote (Freemium), Simplenote (Free, Open Source) and CherryTree (Free, Open Source).
Notebook PEAs - encryption of notes. Protects your private notes with a password. The text is never stored unencrypted on your disk (until you explicitly decide to do that). The used cryptographic primitives are currently considered as safe as possible.
NoteAway is the simplest, most convenient way to take quick notes on OS X. NoteAway has lots of powerful features for free, like iCloud syncing, rich text, attachments, simple import/export, and a variety of customizable options.
This program is a structured notetaking application based on GTK+ 3. Write your notes in instantly-formatted Markdown, organise them in a tree of folders that can be instantly navigated from within the program, and add hand-drawn notes by mouse, touchscreen or digitiser.