Frequently Asked Questions

Everything you need to know about prediction markets and MassPredict

Prediction Market Basics
Prediction markets are exchange-traded markets where participants buy and sell shares based on the outcome of future events. The prices reflect the collective probability assessment of the crowd. For example, if shares in "Team A wins the championship" trade at $0.65, the market implies a 65% probability of that outcome.
Research has consistently shown that prediction markets outperform expert forecasts and polls. They're particularly accurate for political elections, sporting events, and economic indicators. The "wisdom of crowds" effect means that aggregating many opinions tends to cancel out individual biases and errors.
Legality varies by jurisdiction and platform. In the US, Kalshi is CFTC-regulated and legal nationwide. Polymarket uses cryptocurrency and is available internationally. PredictIt operates under a CFTC no-action letter for research purposes. Manifold uses play money. Always check your local regulations before participating.
About MassPredict
MassPredict is a prediction market aggregator that pulls data from 8 platforms: Polymarket, Kalshi, PredictIt, Manifold, Metaculus, Smarkets, Futuur, and Limitless. We help you find the best odds by comparing probabilities across platforms, identify arbitrage opportunities, and track market movements.
Yes! Basic search and market comparison is completely free. For advanced features like price alerts, historical charts, expert following, and API access, check out our Raven Aⁱ premium tiers.
Market data is refreshed regularly throughout the day. The exact frequency depends on the source platform and your subscription tier. Raven Aⁱ subscribers get access to more frequent updates and real-time alerts.
Raven Aⁱ Premium
Raven Aⁱ is our premium intelligence suite that gives you advanced tools for prediction market analysis. It includes six modules: Scout (market scanning), Vision (AI analysis), Intel (deep research), Nest (portfolio tracking), The Perch (community features), and API access for developers.
We offer three tiers: Hatchling (Free) for basic access, Fledgling ($9.99/month) for enhanced features, and Raven ($29.99/month) for full access including API. Visit the Raven Aⁱ page for complete details.
Yes, you can cancel anytime. Your access will continue until the end of your current billing period. We don't offer refunds for partial months, but you'll retain full access until your subscription expires.
Trading & Strategy
No, MassPredict is an aggregator and research tool. To place trades, you'll need accounts on the individual platforms (Polymarket, Kalshi, etc.). We link directly to markets so you can quickly navigate to the platform of your choice.
Arbitrage occurs when the same event has different prices across platforms. For example, if Platform A prices an outcome at 60% and Platform B prices it at 55%, there may be an opportunity to profit from this discrepancy. MassPredict helps you spot these differences by comparing markets side-by-side.
No. MassPredict provides data aggregation and analysis tools for informational purposes only. We do not provide financial, investment, or trading advice. Always do your own research and consider consulting a financial advisor before making trading decisions.

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Disclaimer: In active development. Prediction market & news data is aggregated from third-party sources, may not be accurate or real-time. Do not make financial decisions based on this information.