There are 100 million runaway youths worldwide. These youth face an increased risk of physical and emotional harm. Our team worked with the Sati Foundation, a non-profit organization in Bangkok, Thailand, to develop a mobile application to reduce risks for runaway youth. We designed our project using the Software Development Life Cycle methodology. To learn about the runaway youth and their needs, we conducted interviews and followed user-centered design to create our application. We created features that connect runaways to emergency help, show the locations of free resources, and teach runaways about health and wellness. These features help to ensure that runaways do not have to resort to dangerous or illegal activities to fulfill their basic needs.