ChaloTrain Android App & Play Store Publishing

Project Title ChaloTrain – Android Railway Information App Development & Google Play Store Publishing Platform: Android Website: ChaloTrain.com Project Description: I need a professional Android railway information application for ChaloTrain Technologies Private Limited. The developer will be responsible for the complete project from UI development to API integration, testing, production build, and successful submission/publishing on Google Play Store. Required Features: PNR Status Live Train Status Train Schedule / Route Train Between Stations Train & Station Search Seat Availability Fare Enquiry Train Classes Trains by Station Live Station Clean modern ChaloTrain branded UI Loading, no-data and API-error screens Share train/PNR information where applicable About Us, Contact Us, Privacy Policy and Terms screens API & Backend Requirements: Railway APIs are available through RapidAPI. Developer must integrate the required endpoints properly. RapidAPI/API secret keys must not be exposed directly inside the Android application. A secure backend/API layer should be used. Basic caching, rate-limit handling and API failure/error handling should be implemented. The architecture should allow us to replace the railway API provider later without rebuilding the complete application. Technical Requirements: The app should be fast, responsive and suitable for current Android devices. Developer must provide properly structured and maintainable source code. No hardcoded/mock railway information should remain in the production version. Google Play Store Work: Developer's work includes: Production-ready signed Android App Bundle (AAB) App versioning/package configuration Play Console technical configuration Required Data Safety/app-content configuration assistance Uploading the app to our Google Play Console Fixing technical issues/rejections related to the developed app Completing required testing/release setup Taking the application through the Play Store submission process and production release Google Play Developer account and any required third-party/API fees will be provided/paid separately by us. Final Handover: After completion, we must receive the complete source code, backend source code, database/backend credentials belonging to the project, signing/keystore details, API configuration documentation and final AAB/APK. All project accounts and production assets should remain under ChaloTrain's ownership/control. Payment: Milestone based. Final payment only after complete source-code handover and agreed Play Store submission/release work is completed. Timeline: Approximately 3–5