betThe Betwun guide
Betwun vs Polymarket vs Kalshi
Your question. Your stakes. Your resolution rules. Betwun lets you turn your own prediction into a bet someone else can accept.
Create the bet you have in mind
On Betwun, you write the question and define what counts as YES or NO. Choose the evidence source, stake, acceptance deadline and resolution time, then publish your bet for an opponent to match. Those conditions become the agreement both sides accept.
Polymarket’s markets team creates its listings; users can suggest new ideas. Kalshi also accepts market suggestions for team review. Kalshi offers custom combos of eligible existing events, which is different from writing a new question and its resolution criteria. Polymarket market creation · Kalshi market suggestions · Kalshi combos.
| Feature | Betwun | Polymarket | Kalshi |
|---|---|---|---|
| Your own question | Write and publish a custom bet. | Suggest a market to its markets team. | Suggest a new market; combine eligible existing events into combos. |
| Resolution rules | Set the criteria and evidence source before anyone accepts. | Trade under the market’s published rules. | Trade under the contract’s published rules. |
| Main format | One opponent matches your stake on the other side. | Buy and sell outcome shares at market prices. | Buy and sell event contracts at market prices. |
| Leaving a position | Cancel an unmatched main bet. Matched stakes stay held for settlement. | Sell before resolution if there is a willing buyer. | Sell eligible contracts through a sell order at available prices. |
| Fees | New bets: 5% of profit at settlement. | Taker fees on certain markets; rules vary by category. | Transaction fees; some markets have different rates or maker fees. |
Set the criteria up front. Let evidence settle it.
Your resolution rules explain how the result will be checked: which source counts, which threshold matters and what time period applies. You define these when you create the bet. After the resolution time, AI proposes a result from evidence; participants have 24 hours to challenge it, and disputes go to human review.
Polymarket’s documented resolution process uses the UMA Optimistic Oracle. Kalshi’s markets team finalizes settlement using the relevant market rules and official sources. Polymarket resolution · Kalshi settlement.
Equal stakes make the main bet easy to follow
A $10 Betwun bet is matched by one $10 opponent. With the current 5% profit fee, the head-to-head winner receives $19.50. Additional participants can back YES or NO in a separate side pool whose return depends on how the stakes are divided.
Polymarket and Kalshi use prices offered by market participants. They support selling positions, subject to available buyers and trading conditions. Betwun does not currently offer resale or early cash-out of a matched bet. Polymarket trading · Kalshi trading · Kalshi sell orders.
Compare fees for the bet you actually want
Betwun’s stored profit fee applies when a bet settles. Polymarket charges taker fees on certain markets, while Kalshi charges transaction fees that can differ by market. These charge different things at different times, so a headline percentage alone is not a like-for-like cost comparison. Polymarket fees · Kalshi fees.
Start with your own idea
Pick a question you can resolve with clear evidence. Define the outcome, source and dates, then choose your side and stake. Your opponent can read the full agreement before matching it.
Checked October 11, 2026 against the official sources linked above. Polymarket references describe its global platform; separate products may have different rules. Features and fees can change.