Android CRM App Development

I need a dedicated Android application that functions as a lightweight CRM. The goal is to let my team manage customer information quickly and reliably from their phones—viewing contacts, adding notes, and updating deal stages without having to open a desktop browser. The scope is limited to Android only; no iOS work is required right now. I will provide brand guidelines and any existing data structures we already use so you can map fields cleanly inside the app. Key deliverables: • Fully functional APK ready for Play Store submission • Clean, well-commented source code • A brief setup guide so I can build future versions internally Please factor in basic UI/UX polish, user authentication, and simple offline handling so field staff can keep working during spotty connections. If you have questions about preferred frameworks or need clarifications on any integration points, let me know and we can decide together.