Polymarket isn't the only prediction market platform. Here are the top alternatives for different needs.
Kalshi
Best for U.S. users
- CFTC-regulated, legal in the U.S.
- Uses USD, not crypto
- Political, economic, and event markets
- Lower volume than Polymarket
PredictIt
Academic prediction market
- Run by Victoria University
- Legal for U.S. users (academic exemption)
- $850 position limits
- Political markets focus
Metaculus
Forecasting without money
- Reputation-based, not real money
- Scientific and long-term questions
- Strong forecaster community
- Good for practice
Platform Comparison
| Platform | Currency | U.S. Legal | Liquidity |
|---|---|---|---|
| Polymarket | USDC | No | High |
| Kalshi | USD | Yes | Medium |
| PredictIt | USD | Yes | Low |
| Metaculus | None | Yes | N/A |
Compare Platforms with Alphascope
Alphascope aggregates multiple prediction markets:
- Predictions → Compare odds across platforms
- Arbitrage → Find price differences