Instant Service Booking Suite

I am building a lightning-fast, on-demand service platform and need a full working bundle: an Android customer app plus an accompanying admin panel. Customer App (Android only) The app must let users book a service and lock in a time within minutes... (Budget: ₹600 - ₹1500 INR, Jobs: Android, AngularJS, Flutter, GraphQL, Mobile App Development, PHP, REST API, Web Development)