Cosun is a fun mental health app, designed for people aged 18-30, especially those going through an existential crisis and looking for support for their mental health. Cosun combines self-discovery with mental health insights, helping to bridge the gap between prevention and treatment.

With Cosun, users can:
1. Discover your unique personality traits and emotional patterns by entering your birth date, birth time, and place of birth.
2. Take free mental health tests to assess current health status.

The data is then analyzed to create a program of individualized self-development programs, presented through fun challenges and rewards for completing each challenge. Each challenge only takes about 2-3 minutes to complete, and users can do it alone or with a loved one.

Cosun turns the journey of personal development into an accessible and enjoyable experience. Think of it as Duolingo for mental health - one step at a time towards a happier life.