I need a clean-coded Android application whose first and only mission is to integrate smoothly with popular social media services. Users should be able to log in with (and, if possible, share from) their existing Facebook, Google, X, or Instagram accounts without having to create a separate profile inside the app. For this initial build I’m deliberately keeping the scope focused—no push notifications or in-app registration form for now—so the success metric is a rock-solid, crash-free social sign-in and share experience. You may work in Kotlin or Java; React Native or Flutter is acceptable too as long as the final package targets the current Android API level and is ready for Play Console upload. Once we agree on the structure, I will send over simple wireframes and branding assets. Deliverable • Android Studio (or relevant framework) project with clear, maintainable code and inline comments • Release-ready APK/AAB that installs and lets me log in/out and share content via at least one connected social account, tested on multiple devices I will confirm completion after hands-on testing shows smooth authentication, token handling, and sharing with no crashes or unexpected permissions prompts.