It allows you to form a routine. A routine consists of a name and a number of activities. Each activity has a name, a duration and an order(1st,2nd, 3rd..). Routines can be public or private. If public, others can see and "play" that routine. Think of playing a routine like playing a playlist, instead of songs there are activities.
I kept seeing people sharing their morning routines on reddit, medium, youtube, etc. The idea was to have a platform where people can create and share their routines.
It will be great if you add this info to the webpage. Not a lot of people will download an app without knowing what it does.
For what purpose?
"My morning routine helps you to discover what morning routines are other people following. That might inspire or guide you to change your morning routines to have a bit more structure."