What are the different phases of developing a mobile app?

It always starts with requirement gathering, which is the analysis phase, which is determining what needs to be done, what the benefits are, what the features are, and then finalizing them. The next phase is the design phase where you actually design the look and feel of the app, the user experience, and the user interface. Once that is done, you develop the app by converting those designs into code, creating the backend database. The next step after that is testing everything thoroughly to make sure it works on different platforms. Finally, you would take the app live and continue to add features and provide support.