Scream to Unlock is described as 'A chrome extension that blocks social media sites (Facebook, Instagram, Twitter) until you scream I'm a loser. The louder you scream, the more time you get to browse' and is a anti procrastination tool in the web browsers category. There are more than 50 alternatives to Scream to Unlock for a variety of platforms, including Android, Mac, iPhone, Windows and Google Chrome apps. The best Scream to Unlock alternative is Mindful : Focus & Screen Time, which is both free and Open Source. Other great apps like Scream to Unlock are LeechBlock, DigiPaws, RescueTime and Cold Turkey.