This application will remind the users who overuse their smartphones to follow the 20-20-20 rule. What is 20-20-20 Rule? If you find yourself gazing at screens all day, your eye doctor may have mentioned this rule to you. Basically, every 20 minutes spent using a screen, you should try to look away at something that is 20 feet away from you for a total of 20 seconds.This rule helps prevent our eyes from straining. This application will remind you every 20 minutes to look away from the screen