CryptoTE - CryptoTE is a text editor with integrated strong cryptography.
Monkkee - Keep a private journal securely on the Internet – to provide a convenient user experience your...
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
Idea Notebook - Idea Notebook is an app that allows you to keep track of your logs business ideas and track as well as organize them.
Daybreak - An intelligent to-do app that learns when to remind you
RunaBook - RunaBook is a lightweight application that lets you create and organize notes, knowledge bases, and daily routines.