To build an app like The Home Depot, start by identifying key features such as product browsing, online purchasing, and store locator functionality. Choose a suitable tech stack, using React Native for cross-platform development. Implement robust backend support with Node.js and integrate a secure payment gateway. Incorporate features like user reviews, wish lists, and personalized recommendations. Focus on an intuitive UI/UX design to enhance user engagement. Ensure compatibility with various devices and operating systems. For a seamless development process and expert guidance, consider collaborating with Dev Technosys, who can help you bring your vision to life effectively.