The task is to build Yap I Money, an Android-only mobile app devoted to clear, real-time investment tracking. The core flow is simple: users open the app, add or import their holdings, and immediately see how each position—and the portfolio as a whole—performs over time. Key expectations The first release must let a user create an account (email, Google, or anonymous), record assets with purchase price and date, view gains/losses, and display allocation and performance charts. Data may live locally or in a light cloud back end such as Firebase, but it has to be stored securely and structured so future features like brokerage syncing can slot in without a full rewrite. Smooth navigation, material-design UI and responsiveness on common mid-range Android phones are non-negotiable. Deliverables • Play-Store-ready APK • Well-commented source code (Kotlin or Java) pushed to a private repo • One-page architecture & build guide Acceptance The app installs without errors, opens in under two seconds on a typical device, records positions accurately, and renders portfolio values that persist across sessions. Tools you are free to use include Android Studio, Kotlin, Java, Firebase, Room, MPAndroidChart, or any other open-source library that keeps licensing permissive.