A closed-loop play currency

Settle bets, chores, and IOUs in Crub Bucks.

Crub Bucks have no real-world value. The system sums to zero by construction — for every buck someone's up, someone else is down. Wallets are allowed to go negative; the bank is bottomless.

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A one Crub Buck note: purple, with Cala the dog as Governor of Bark. — Issued by *The Republic of Crub*. Backed by the Tail Tuft Guarantee. Signed by the Governor of Bark and the Registrar of Puppiness.

Where it came from

“Crub” was the nickname for our dog, Cala Lily. She was a delightful Aussiedoodle that was always a source of amusement for the kids. The term “Crub Bucks" started as a way for our kids to trade unequal chores — picking up Cala's doody was seen as more onerous than washing the dishes — and over time it grew into fun bets and favours between them. In a funny way, it taught them the value of money and some rudimentary math.

You're welcome to enjoy it and to share it with your family.

Zero-sum by construction

Every economic event is a transfer: one wallet's balance goes down, another's goes up, by the same amount, in one database transaction. Balances are never stored — they're derived by summing the ledger — so they cannot drift. Cumulative bugs in the math are impossible.

One wallet, your friends

Add a friend by email, by texting your personal link, or by scanning their QR in person; your single CB balance follows you everywhere. New players get a 100 CB welcome grant from the Bank on first login — the Bank just goes that much more negative, keeping the books at zero.

A public feed

Like Venmo, there's a shared feed: who started a bet, who won (team games can have several winners), and who paid whom. Everyone signed in can follow along.

Bets, made flexible

No groups to set up — a bet is the grouping. You make a bet, add some friends (you're always in it too), and declare each person's potential payout (if they win) and loss (if they lose) — they don't have to be 1:1. Resolve it whenever the result is in; the ledger moves CB from losers to winners. Payouts and losses must balance, or we refuse to settle.

Earn CB for chores

Post tasks — one-time or recurring — with a Crub Bucks reward: take out the trash, walk the dog, unload the dishwasher. A family member claims a task, does it, and marks it done; once you approve, the reward moves from your wallet to theirs. It's the same closed CB ledger, so chores turn into a friendly little economy.

No real money

Crub Bucks have no real-world value. Don't try to send people USD via the app, don't try to redeem CB for anything tangible, and please don't get any of your friends arrested over a poker debt.

Ready to play?

It takes about a minute to set up.

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