Choosing the right technology stack is vital for developing delivery app. Typically, a combination of front-end and back-end technologies is employed to build a robust and scalable application. For the front end, frameworks like React Native or Flutter are popular due to their efficiency in developing cross-platform apps. On the back end, Node.js, Express, and databases like MongoDB or Firebase are commonly used. This combination ensures that the Developing delivery app is responsive, reliable, and capable of handling high traffic volumes.