Android iOS Appointment Booking App

I’m ready to move my appointment-based service online with a polished mobile experience that works flawlessly on both Android and iOS. The core of the project is a booking flow where users can browse real-time availability, select a time slot, and confirm instantly.

Key functions I need built in:
• Deep calendar integration so staff schedules stay perfectly in sync.
• Automated, configurable reminders by push notification, SMS, and/or email to cut no-shows.
• Live availability logic that locks a slot the moment it’s chosen, preventing double-bookings even under heavy use.

Clean, intuitive UI/UX is essential—most customers will complete the booking in just a few taps, so every extra screen hurts conversions. I’ll provide branding assets and the basic wireframes; you’ll turn them into a production-ready interface.

Tech stack is flexible; Flutter, React Native, or native Swift/Kotlin all work as long as the final apps pass App Store and Google Play review. I also need a lightweight admin portal (web or in-app) where I can create services, set staff working hours, and view/reschedule appointments.

Deliverables
1. Source code with clear documentation.
2. Two store-ready builds (Android & iOS) plus guidance for submission.
3. A brief hand-off session walking me through deployment and day-to-day use.

If you’ve shipped appointment apps before, especially those handling real-time calendar sync, your experience will be invaluable. Let’s discuss timelines and any libraries or APIs you plan to leverage so we can get this into users’ hands quickly.