Run the auction. Split the pot. Settle the tab — without anyone playing accountant.
My calcuttas
No account needed — join with just your name. Sign in only if you want your calcuttas to follow you across devices.
Synced as — your calcuttas follow you on any device.
This is the same as hosting — it just stays private until you send anyone the code.
CalcuttaCalc is not a betting service, and it can't be used as one.
Operating real-money wagering through an app requires gambling licenses — we don't have them and the app
is built so it never needs them: it cannot take, hold, move, or pay out money. It's a scorekeeper for private
social auctions; whatever stakes exist live entirely between you and your group, offline. Social wagering laws
vary by state and country — the organizer is responsible for keeping the game legal where they live.
For participants 21+. If gambling stops being fun, call or text 1-800-GAMBLER.
Add a bidder (host — for folks in the room without phones)
By bidder
By person — who owes what · who collects what
Settlement is math only — money changes hands between you, in person. CalcuttaCalc never touches it.
Lots (teams)
Payout structure
Going live locks the event to a 6-letter code your friends can join from their phones.
House rules (host only — all optional, all off by default)
Placing teams split what's left (100% − cut − consolation) per the payout structure on Setup.
Like everything here it's scorekeeping only — the app never touches the money.
Per-lot reserves & notes
Reserve = minimum hammer price for that lot (overrides the event minimum if higher). Notes show on the board — odds, draw position, whatever the room should see.
