ScreenDose 

ScreenDose helps you manage your eye health by checking how many hours you’ve spent with the screen on. Enter your screen-on time (hours) and get an instant warning level:
OK (healthy)
Caution (limit reached, take breaks)
Caution+ (heavy use, eyes need rest)
Danger (severe overuse, stop now!)

Features:
• Enter your screen-on hours
• See your eye rest warning level
• One-tap copy or share
• Fast reset
• Clear health guidance for device users of all ages

Protect your eyes and your habits—ScreenDose makes it easy!