<human>:  How do I build a mobile app?
<bot>: To build a mobile app, you will need to decide on the type of app you want to create and any features you want to include. Once you have the plan for your app, you will need to choose a development platform such as iOS, Android, or a cross-platform service like React Native. You will then need to choose a programming language that works with the platform you chose and acquire the necessary development tools. After that, you will be able to design, develop, and test your app before releasing it.