This paper deals with agile approach to developing applications on the mobile application example called “FoodTracker” to monitor the quality of nutrition. A mobile application is created using the SCRUM method that generates individual parts of a targeted applet in multiple iterations, such as creating a database, model that communicates with a database, views that display information, and a controller that communicates with views, with a constant interaction within a development team including users. This paper will show the steps in creating a mobile Android-based mobile app that was created in the Android Studio application for a food quality management example that has user registration capability, user login, inserting meal intake, displaying all of the inserted meals and corresponding calories and displaying recommended calories to maintain your current body weight on a current date. The recommended amount of calories entered for a specific date is calculated from user’s setting which are inserted into the database on the creation of the account. The calculation is using the BMR formula called “Mifflin St Jeor Equation”. With the creation of the app, this paper will show the targeted applet mockup required for enhanced application functionality, interface design created with Adobe Photoshop tool, and impletened into .xml file within the Android Studio application, the functionality of the targeted application, and give usability analysis of the application through user analysis system. In the end, it will explain several advantages and disadvantages of using the agile approach of the SCRUM method and its contribution to the quality of mobile and other applications.