Cross-platform development can significantly boost your eCommerce mobile app by allowing you to reach a wider audience with a single codebase. Instead of building separate apps for iOS and Android, you can save time and resources by developing one app that works seamlessly across both platforms. This approach ensures consistent performance, reduces development costs, and speeds up the time to market. Additionally, with cross-platform tools, your eCommerce mobile app development can include essential features like secure payment gateways, real-time updates, and responsive designs, enhancing the user experience and driving more sales.