You can mine Pi on your smartphone through the Pi Network app. The coin is not yet indexed at any exchange, but that will change with phase 3 of the coin development. Basically free money. You can check the whitepaper if you are curious about the phases and what the coin aims to be: https://minepi.com/white-paper
Download from Google Play:
https://play.google.com/store/apps/details?id=com.blockchainvault
Download from App Store:
https://apps.apple.com/us/app/pi-network/id1445472541
Before you start mining you need to specify who invited you, so feel free to use my code if I helped you.
Code:
MichaelTX
Thank you.