Developing Android applications is a powerful way to connect people with the information they need the most. Apps are for living your life: daily commutes, traveling abroad, handling your money, communicating with family, and much more! This places the responsibility of engineering top-notch software squarely in the laps of us developers. Unlike doctors, we were not required to take an oath or pledge when becoming Android Developers. However, we can still learn much from the principles behind the phrase, “First, do no harm.” In this talk, we will discuss over a dozen tools that are at your disposal as a developer which can enable you to provide high quality applications to your users. Thus allowing you to first, do no harm!