ISP Customer Android App

I need an Android application that lets my internet subscribers manage every aspect of their account from a single, branded interface. After signing in with their phone number and a one-time password, a customer should be able to see plan details, real-time data usage, past invoices, and initiate renewals or upgrades without leaving the app.

Integrated support is just as important: a built-in live chat window will connect users to our help-desk team, while a lightweight ticketing system records issues, assigns reference numbers, and pushes status updates via notifications. Both support channels must sync with our existing CRM; I can supply API documentation and test credentials.

Clean, modern UI/UX, Kotlin (or Java) code that meets Play Store guidelines, Firebase (or equivalent) OTP authentication, push notifications, and crash analytics are expected.

Deliverables
• Full Android Studio project with well-commented source
• Production-ready APK/AAB, signed and aligned
• API integration documentation and Postman collection
• Brief hand-off session or video walk-through so my in-house team can maintain the app

Acceptance criteria
• Successful OTP login on first attempt for 95 % of test users
• Live chat latency under two seconds on a 4G connection
• Tickets created in-app appear in our CRM within one minute
• No critical or major issues in Google Play Pre-Launch Report

If this scope matches your expertise, tell me how you would approach the chat and ticket modules and the timeline you foresee.