Sorry for my English, I'm still learning.
If you want to join a project still in beta but already in phase two of three, download Pi Network app and use my invitation code mimiromi. You can't enter without an invitation code.
They say that at the moment Pi coins worth nothing but in launch phase (few months from now) it could be 1$ to 5$. I started mining with my smartphone (no energy consumption) and I already have more than 400 Pi coins in few weeks. Who joins later earn at a lower rate (after the halvings) so hurry up. I feel like I am at the early days of bitcoin birth and the more people I invite the more all of us will earn.
Download the app and use mimiromi to join.