Polymarket vs Opinion
Same lines, side by side: fee at 50¢, custody, KYC, excluded countries, resolution and volume, from official pages and DefiLlama.
See the 17 differences
| Line | Polymarket | Opinion |
|---|---|---|
| Type | VenueLists, matches and settles its own markets | VenueLists, matches and settles its own markets |
| Taker fee | 0–3.5% at 50¢Takers pay contracts × rate × p × (1 − p): 0.07 in crypto, 0.05 in sports, economics, culture and weather, 0.04 in politics, finance, tech and mentions, 0 in geopolitics; combos 0.05. 100 contracts at 50¢ cost $1.75 in crypto, $1.25 in sports and $1.00 in politics. Makers pay nothing and share 15% to 25% of taker fees; deposits and withdrawals carry no Polymarket fee. | Edge0.5–1% at 50¢Takers pay the market's topic rate × p × (1 − p), capped at 1% at 50¢, with a $0.25 minimum: 100 contracts at 50¢ cost $0.25 to $0.50. Makers pay nothing and receive 50% of the taker fee. Minimum order $5, minimum withdrawal $5. |
| 30-day volume | Edge$2.31B | $267M |
| New-user perk | None documented | EdgeUp to 10% off trading fees with a referral code |
| Custody | Self-custody: your keys, collateral in a smart contract | Self-custody: you trade from your own wallet |
| Identity check (KYC) | Above a thresholdSign up with an email or a self-custody wallet; Polymarket asks its top-volume traders for more information. Its terms forbid using a VPN to get around a block. | Not documentedNo KYC policy is published; you connect a self-custody wallet such as Binance Wallet, OKX or MetaMask. |
| Excluded countries | 41Polymarket's API docs block Iran, Syria, Cuba, North Korea, Crimea, Donetsk and Luhansk outright. In 37 other countries, including the US, the UK, France, Germany, Italy, Australia and Brazil, plus British Columbia, Ontario, Alberta and Quebec, you can only close positions you already hold; Ireland, Japan, the Netherlands and South Korea are close-only on the website only, and Malta for sports only. The help center (14 August 2026) calls most of them fully blocked. US residents are sent to Polymarket US. | 14Terms dated 19 October 2025: the US, the UK, France, Ontario, Singapore, Poland, Thailand, South Korea, China, Taiwan and Hong Kong, plus sanctioned countries and regions. The site returns a geo-block page from France. |
| Resolution | Optimistic oracleUMA's optimistic oracle: anyone proposes an outcome against a bond, typically $750 pUSD, then a two-hour challenge window opens. A second dispute goes to a vote of UMA token holders. Crypto up/down markets settle from Chainlink instead. | AI panel, human appealOpinion AI proposes the outcome from predefined sources, then a jury of models and human reviewers check it. Anyone can dispute within the window, usually two hours, by staking OPN: an upheld dispute returns twice the stake, a rejected one loses it. |
| Settles on | Polygon | BNB Chain |
| Collateral | pUSD | USDT |
| Operator | Adventure One QSS Inc. | Superchillclub Limited |
| Token | No token | OPNBNB Chain |
| Where it runs | Web | Web |
| Chains | EVMPolygon | EVMBNB Chain |
| Documented features | 4 of 10 | Edge6 of 10 |
| Order book | Yes | Yes |
| Anyone can create a market | No | Yes |
| Combos / parlays | Yes | Not documented |
| Maker rebates | Yes | Yes |
| Yield on collateral | Not documented | Not documented |
| Trading API | Yes | Yes |
| Mobile app | No | Not documented |
| Telegram bot | Not documented | Not documented |
| Own token | No | Yes |
| Points program | Not documented | Yes |
Which one should you pick?
Pick Polymarket if
You want to trade from your own wallet, without a document check, in a country Polymarket serves.
The crypto-native venue: a central order book settled on Polygon, collateral that stays in your wallet, and a fee that depends on the market's category, from nothing in geopolitics to 3.5% at 50¢ in crypto. Access is the catch: 41 countries are blocked or close-only, the US, the UK and France among them, and France's regulator has ordered internet providers to block the site.
Read the Polymarket reviewpolymarket.com
Pick Opinion if
You want macro and political markets on BNB Chain with the cheapest taker fee at 50¢.
A BNB Chain venue built around macro and political markets, with the lowest maximum taker fee in the series, 1% at 50¢, and an AI oracle whose results anyone can dispute by staking its OPN token. Its January 2026 volume drew public questions about wash trading, and DefiLlama filters flagged wallets out of its figure.
Read the Opinion reviewopinion.trade
