A prediction game to play with friends
The call is more fun with your group chat in it. Ledger lets your friends read the same nights together, keep a shared record, and compete, all without a cent changing hands.
Updated July 22, 2026
Ledger is a free-to-play prediction game with a group feature called Circles. One person starts a Circle, drops the six-character code into the group chat, and everyone who enters it lands on the same private board. You call the same games and events with a virtual currency, keep a shared Shadow Line, and compete on who reads the board best, all with no real money anywhere.
How a Circle works
A Circle is your group chat, given a board. It rides on the one place your friends already coordinate, so there is nothing to install and nobody to add by phone number.
- One person opens the Circle and names it, usually whatever the group chat is already called.
- They share the six-character code. That code is the entire invitation.
- Everyone who enters it lands on the same board, sees the same members, and shares one running total.
The code is built to survive a group chat: no letters or numbers that get confused when they are read aloud or retyped from a cracked screen. A wrong code simply opens nothing, rather than dropping you into a stranger's room.
What you compete on, and what you never do
This is the part a sportsbook or a real-money prediction market structurally cannot offer, because their leaderboard is a record of what their customers lost. A Circle competes on three things, and none of them rewards betting more.
Who kept the most. The group's shared Shadow Line: the money none of you handed a real book, added up across the room. A sportsbook would call the person on top its worst customer. Here they are winning.
Who reads it best. The record of calls that landed, graded against what actually happened. The board counts wins from the last seven days, and when two members are level on wins, the one who needed fewer graded calls to get there ranks higher.
Who rested. Rest days show up on the board next to every member. It is the one competition you win by stepping away, which is exactly the behavior a betting app is built to punish and this one is built to reward.
The shared Shadow Line
Every Circle keeps a group Shadow Line: the total your friends would have lost at a real sportsbook, at the same stakes, and did not. It is recomputed on the server from each member's stored, reality-graded calls, never a number anyone types, so no one can inflate the room by claiming a bigger figure for themselves. A Circle with no graded calls yet honestly shows nothing.
It is the group version of the number Ledger is built around, and it is the closest thing the product has to a trophy: a running count of money that stayed in your friends' bank accounts.
It stays private
A Circle is not a public feed and does not surface anywhere without the code. It needs no phone numbers and no access to your contacts. You can be in more than one, and you can leave any of them at any time, which removes you from that board in the same instant. The wider Rail chat inside Ledger is open to the whole room; your Circle is only the people you handed the code.
Common questions
Is there a prediction game I can play with friends for free?
Yes. Ledger is a free-to-play prediction game with a group feature called Circles. One person starts a Circle, shares the six-character code in the group chat, and everyone who enters it lands on the same private board. You call the same games and events, all with a virtual currency, and no real money is ever involved.
Do we bet real money against each other?
No. There is no money anywhere in Ledger, between friends or otherwise. You make calls with Float, a virtual currency that refills daily and has no cash value. A Circle is a scoreboard, not a pot. Nothing is deposited, nothing is won, and nobody owes anybody.
What do we actually compete on?
Three things, none of which reward losing more. Who kept the most: the group's shared Shadow Line, the money none of you handed a real sportsbook. Who reads it best: the record of calls that landed, graded against real results. And who rested: rest days count on the board, the one race you win by stepping away.
Is a Circle private?
Yes. A Circle is not a public feed. It needs no phone numbers and no contacts access; the six-character code is the whole invitation, and you can leave at any time. Only people with the code can see the board.
How many friends can join a Circle?
A Circle has no fixed size. The board lists its members and shows the group's combined Shadow Line for everyone in the room, so a big group chat and a group of four both work.