Screen off Memo for Note 4 & 3

SCREEN OFF MEMO ONLY FOR SAMSUNG GALAXY NOTE 4, NOTE 3, NOTE 2 & GALAXY NOTE EDGE? Screen off Memo is the most useful feature of Galaxy Note 5, which allows you to quickly take a note when the display is turned off. Now, It's available for Galaxy Note 4, Note 3, Note 2 and Note Edge. When the screen is off, you can take out your S-Pen and start typing directly on your screen without turning on or unlocking your device. Screen off note will be saved automatically in SNote when you plug your pen or turn off screen.
Operating System Android