Features:
• Quickly create and save plain-text notes
• Optionally create rich-text notes using Markdown or HTML (Android 5.0+)
• Beautiful easy-to-use UI with Material Design elements
• Dual-pane view for tablets
• Share notes to and receive text from other apps
• Auto-saves drafts
• View Mode for notes with clickable links
• Sort notes by date or by name
• Keyboard shortcuts for common actions (see below)
• Integration with Google Now "note to self"
• Android Wear support (with additional plugin)
• Import and export notes to external storage (Android 4.4+)
• Zero permissions and absolutely zero ads
• Open-source

Keyboard shortcuts
Search+M: launch Notepad from any application
Ctrl+N: New Note
Ctrl+E: Edit Note
Ctrl+S: Save
Ctrl+D: Delete
Ctrl+H: Share