PolyMarket and Hyperliquid are leading a trend in the crypto industry by developing their own dedicated blockchains, known as App Chains, to enhance user experience and control over their platforms. PolyMarket, a prediction market project, and Hyperliquid, a decentralized exchange, are moving away from public blockchains to mitigate issues like network congestion and fluctuating fees, which can impact user retention and transaction efficiency. This shift allows these projects to optimize their execution environments and economic systems, creating a more seamless and controlled user experience. However, launching an App Chain presents challenges such as liquidity fragmentation and ecosystem isolation. Companies like Caldera are addressing these issues by providing tools to improve interoperability and connectivity, ensuring that new chains can integrate smoothly into existing networks. This approach aims to transform App Chains from isolated entities into integral parts of a broader interconnected ecosystem, enhancing their potential for sustainable growth.