Participate in scientific research by answering short questions and experiments throughout your day. Contribute to understanding human thought, feelings, and behavior.





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Whether you want more options like NotMyPii or a completely different take on the same concept, our curated list of 9+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.





Participate in scientific research by answering short questions and experiments throughout your day. Contribute to understanding human thought, feelings, and behavior.





Conduct advanced auditory and cognitive tests from home. This application is developed by the Brain Game Center for Mental Fitness and Well-being at Northeastern University.





This AI-powered coach offers a voice-first approach to mental well-being, providing a non-judgmental space to process thoughts and feelings anytime. It learns your patterns to offer personalized support for managing anxiety, building habits, and improving sleep.