UpNote - A beautiful and clean cross-platform app for notes organizer
Capture2text - Capture2Text enables users to quickly OCR a portion of the screen using a keyboard shortcut.
Notesnook - Notesnook is a simple and private note taking app that keeps your notes organized and synced on your phone, tablet and computer.
TextSniper - Instantly extract any text from your Mac's screen
Note Board - Productivity app. Save information like a sticky notes.
dpScreenOCR - Program to recognize text on screen