Happy Face Finder uses the principles of Cognitive Bias Modification to help train your brain to focus on positive cues. Each round challenges you to quickly find the happy face in a crowd of sad ones. This repeated attention training helps strengthen positive thinking patterns over time. With consistent practice, users may experience improved mood, reduced stress and greater optimism. Features: No sign-up, quick daily sessions, web-based, mobile and desktop, dark mode, haptic feedback, free.