What Is KrowdCall? A Simple Guide

Most friend groups already run informal prediction markets. Someone says the match will go to penalties, someone else says no chance, and three weeks later nobody remembers who said what. KrowdCall is an app for writing those calls down, putting a number on them, and finding out who was right.

This guide answers the practical questions: what KrowdCall is, what you get, what it costs, how to start, and who it suits (and who it doesn't).

A Prediction Game, Not Gambling

KrowdCall is built on prediction markets: every market asks one YES/NO question, people buy YES or NO shares, and the price of a share works as the crowd's probability. If that mechanic is new to you, What Is a Prediction Market? explains it from the ground up.

What KrowdCall changes is everything around the mechanic. There is no money in it at all. You play with virtual Coins, you sign in with Google, and you can keep a market inside your group instead of putting it in front of strangers. The point is the debate and the record of who called it, not a balance you can withdraw.

KrowdCall at a Glance

These are the facts most people ask about first.

How a Market Works on KrowdCall

The loop is short. Someone creates a market with a question, a description, resolution rules and a closing time. People open it and click Predict YES or Predict NO, choosing how many shares they want; the app shows the cost in Coins before they confirm. Every prediction moves the probability, and everyone sees it change live.

Once the closing time passes, nobody can predict any more. The creator then resolves the market YES or NO, each correct share is worth 1 Coin, and you either see "You called it" or you don't. Your P&L page keeps your open positions and settled results, and each market shows its top holders.

If you want the full walkthrough for getting a group started, How to Play Prediction Markets With Your Friends goes step by step.

What It Costs (Spoiler: Nothing)

KrowdCall is free, and the Coins are the only currency. You can't buy more and you can't cash them out. If a few bad calls drain your balance, the monthly top-up brings you back to 1,000 on the 1st. Balances above 1,000 are left alone.

So what does being wrong cost? Some Coins for the month, and a visible dent in your record. That is a softer incentive than real money, and it is worth being honest about. In practice, for a group that already enjoys arguing, bragging rights tend to do most of the work.

The one cost of creating a market

Creating a market sets aside a liquidity deposit, which funds the automated market maker that prices the shares. Its size depends on the price sensitivity you pick: about 34.66 Coins for Fast-moving, 69.31 for Balanced (the default) and 138.63 for Stable. As a rule of thumb, small groups with few predictors should pick Fast-moving, so a handful of predictions visibly moves the probability; Stable suits big, busy markets.

When the market is resolved, you get back the deposit plus the Coins predictors paid in, minus what the correct shares are worth (never below 0). That means it can come back as more than the deposit if the market maker came out ahead, or less if it lost. If the market is canceled, the whole deposit is returned. LMSR Explained for Beginners explains why the settings behave the way they do, and How to Create a Prediction Market shows where to choose them.

Public or Private

A public market is open to everyone on KrowdCall. A private market is visible only to you and the people you invite: between 1 and 100 people, added by username. They need a KrowdCall account first, and there is no link sharing, so pasting the URL in a group chat won't let anyone in.

Some things lock once the first prediction is made: the description and the resolution rules can no longer change, and a public market can no longer be made private. While a market is open, the creator can still move its closing time earlier or later (at least 30 minutes ahead), which is handy when the answer is about to come sooner than planned.

What You Can Predict

Anything with a clear YES or NO answer, a deadline and a source everyone accepts. Markets are filed under General, Sports, Politics, Entertainment, Finance, Science or Other. A few examples of the shape that works:

Each one names the deadline and where the answer will come from, which is what keeps resolution quick and argument-free. For more ideas, see 10 Prediction Market Examples to Try; for wording help, Prediction Market Questions: 9 Writing Tips.

Who KrowdCall Is For (and Who It Isn't)

KrowdCall fits best when the people predicting already know each other or share a context:

It is probably not the right tool if you want to trade with real money, need questions with more than two outcomes, or want a large public community of strangers forecasting world events. Other platforms do those things better, and Best Free Prediction Market Apps compares them honestly.

How to Start

Sign in at krowdcall.com with Google, and your 1,000 Coins are there. From there you can browse the live markets and make a first prediction, or create a market for your group. How to Create a Prediction Market walks through every field, and once you have a few predictions settled, the Prediction Market Strategy Guide covers how to get better at them.

The short version: KrowdCall takes the argument your group is already having and gives it a question, a deadline and a number. It won't tell you who is right ahead of time, but it will remember who was.