Simple Android Booking App + Basic Website

Looking for a freelancer or small team to build (1) a simple Android app and (2) a basic mobile-friendly website for booking/appointments. Budget is fixed at ₹30,000-35,000 total for both, so scope must stay minimal and efficient — please use an existing booking backend/API (e.g., Setmore, SimplyBook.me, or similar) rather than a custom backend, to keep costs down. Core features only: customer views available time slots, selects a date & time, enters basic details (name, phone, email), and receives a booking confirmation. Business owner needs a simple way to see new bookings (existing tool's dashboard is fine). No payment gateway, no chat, no reviews/ratings, no custom admin panel needed. Website can be a few simple pages (home, booking, contact) — no need for separate backend if it connects to the same booking tool as the app. Clean, simple, easy-to-use UI is the priority — not feature-heavy. Looking for someone comfortable working within a tight, fixed budget and timeline.