If you join a Club, you can get Coins once a day, after the first time you earn an Acorn.

The first time you get Acorns within a level, a Coin icon will appear above the League button. Tap on that to collect the Coins.

The amount of Coins you get is not affected by how many Acorns you get.

After collecting one of these bonuses, the next one will be after 5AM Pacific Time.

Acorns collected by the Club over the week will also help the Club rank higher, which confers bigger bonuses at the end of the season.