About π° in the game
https://www.mnemosynch.net/build-n-play-user-guide/about-virtual-cash/
You will have 1000 π° when you start the app. The π° can be used to ask guru about the current play (in the game play page, tap ‘GURU’, and then ‘Current Play – All’ or ‘Current Play – Common’). The π° can also be used to get clue for solving bingo challenges (in the daily bingo page or the bingo challenge page, tap ‘CLUE’).
After you play a game or solve a bingo challenge, you will earn a certain amount of π°. You can see the total amount of π° that you have in game stats (tap ‘Instructions & Info’ and then ‘Game Stats’).
Theπ° is currently not useful in the pro version of the app.