Building a quality Android app often requires a variety of tools and effective collaboration. In the My Monthly Android project, I combined several platforms and technologies such as Replit, Antigravity, Android Studio, and OpenCode to create a ready-to-use APK. This process also involved the help of a friend during the APK build phase, resulting in an optimized and efficient app. This article will cover step-by-step how these tools combined to help in Android app development