COIN is the fun way to mine for coin from your cell phone.
This is particularly made for those who are on the move. Just leave the app open while you are walking, running, biking, driving, skipping… You get the idea.
A new feature even allows you to geo-mine while the app is closed (for short periods of time). I just leave the app open while driving to work and also while sleeping. You don’t get a ton of coin while sleeping, but driving brings in a lot of coin.
There are paid versions, but start with the free one to see if you like it (you will).