Glui is the simplest way to capture, annotate and share screenshots.

Key features:
• Capture screenshots or drag and drop existing images.
• Annotate with arrow, rectangle, pen and text tool.
• Instantly upload to Dropbox and get a link to share, or drag/paste image into any other app.

Other features:
• Runs in the menu bar, the dock or both
• Responsive and clean sharing page
• Keyboard shortcuts
• Quick sharing via email, message, Twitter or Facebook
• Enhanced for Retina display
• Zero clutter