Dingo's Den
Dingo's Den is a place where your child spends the points they earn from doing math. Every correct answer adds XP, and that XP doubles as acorns: a balance your child can spend to decorate a little world around Dingo and to dress Dingo up. You'll find it as its own tab in the app.
Acorns and XP
Acorns and XP are the same number, shown two ways. On the Progress screen it's the XP your child has earned. In the Den it's the acorns they have to spend.
Spending acorns does not lower your child's XP or level. The acorn balance is the XP they've earned minus what they've already spent in the Den. Levels and progress read the full earned XP, so buying a hat never sets your child back in their learning. They keep their progress and get to spend their acorns.
Buying and equipping
The Den has decorations for the scene around Dingo (the sky, weather, a burrow, a pond, and plants) and cosmetics for Dingo (hats and a body color). Each item shows its price in acorns.
Tap an item your child can afford and it's bought and put in place straight away. If they don't have enough acorns yet, the item stays locked until they earn more, and tapping it does nothing. No item can ever push the balance below zero.
Owned items are free to swap
Buying an item is a one-time cost. After that it's theirs to keep. They can take it off, put it back on, or swap it for something else they own as often as they like, and it never costs acorns again. So a child can change Dingo's hat or switch from a sunny sky to a starry one whenever the mood strikes, without saving up again.
It stays
The Den is saved on your child's device. When they close the app and come back, their den rebuilds exactly as they left it. It works offline, and it's theirs.