Exist - Track everything in one place, understand your life.

Habitica - Habitica is a free habit building and productivity application.

Quantimodo - Easily track mood, symptoms, or any outcome you want to optimize

Coach.me - Coach.me is a coach that goes everywhere with you, helping you achieve any goal, change any habit, or build any expertise.

Reporter App - Reporter lets you track the things you care about with a few randomly timed surveys each day.

SuperBetter - Empower youth mental health through schools and sports