Prediction markets are finding a growing audience on iPhone, offering a different way to trade on real-world events. Two of the most talked about apps in this space are Kalshi and Polymarket . While both let users trade event-based contracts directly from their phones, they take very different approaches. What These Apps Have in Common At a basic level, Kalshi and Polymarket work the same way. Traders buy and sell contracts tied to yes or no outcomes such as whether a team will win a game or an economic metric will cross a threshold. Prices move between zero and one dollar, representing the market’s implied probability of an outcome. Both iPhone apps focus on fast access to markets, clear pricing, and simple order placement. They appeal to users who enjoy trading news, sports, and political events rather than traditional stocks. In both cases, the mobile app is designed to be the primary way most users interact with the platform.…