Building an app without writing any code can be surprisingly easy with no-code tools like Bubble. These tools simplify advanced programming concepts, making it possible to create functional apps quickly and easily. The author of this guide will walk through building a simple to-do list app using Bubble, covering topics such as setting up the database, creating the user interface, adding functionality through workflows, and testing the app. As they build their app, they'll explain the logic behind each step, making it easy for readers to follow along and learn how to create their own no-code apps. By the end of this guide, readers will have a solid understanding of how to build a functional app using Bubble, and be well on their way to creating exciting new things without needing to write code.