Frequently Asked Questions
Common questions about PredRadar and prediction markets
What is PredRadar?
PredRadar is a prediction market aggregator that tracks real-time prices across Polymarket, Kalshi, and Betfair. We help traders compare odds, find arbitrage opportunities, and explore markets across platforms.
What platforms does PredRadar track?
We currently aggregate data from three major prediction market platforms: Polymarket (crypto-based, global), Kalshi (CFTC-regulated, US), and Betfair Exchange (UK-regulated, international).
Is PredRadar free?
Yes! PredRadar offers a free tier with full access to market data, explore tools, the arbitrage scanner, and all educational content. Pro plans with real-time alerts and API access start at $17/month.
What is prediction market arbitrage?
Arbitrage occurs when the same event is priced differently across two platforms. By buying on the cheaper platform and selling on the more expensive one, traders can lock in a risk-free profit regardless of the outcome.
How real-time is the data?
Market data refreshes every 30-60 seconds via REST API polling from each platform. Price changes are reflected quickly across all pages including the arbitrage scanner.
How do I compare prediction markets?
Use PredRadar's compare pages to see side-by-side platform comparisons, or browse the explore page to filter markets by platform. The arbitrage scanner automatically identifies price differences across platforms.