How do I avoid accidental purchases?
Big Fish Casino is free to play, but you can choose to purchase items within the game using real money (see In-app Purchases).
To limit in-app purchases, consider adding restrictions. With restrictions, you can block in-app purchases or make it so that in-app purchases require a password.
To restrict in-app purchases (through Google Play):
Open the Google Play Store app.
Tap the menu button (≡).
Tap Settings.
Tap Require authentication for purchases.
Enter your password.
Next, you can pick from several different authentication settings. For more control, consider one of the following:
To require a password for all purchases: Tap For all purchases through Google Play on this device.
To enter a password once for all in-app purchases within a 30-minute window: Tap Every 30 minutes.
For more information feel free to check Google Play Help Article.