Cross-platform Grocery & Food Delivery App

I need a skilled app developer to create a grocery and food delivery app for both iOS and Android. The app needs to include:

- Order tracking: Users should be able to keep track of their orders in real-time.

- Payment Gateway Integration: A secure and efficient payment system is crucial for this app.

- User Profile Management: Allow users to create and manage their profiles.

- Push Notifications: Send real-time updates about order status and promotions to users.

- In-app Chat: Enable users to communicate with delivery personnel and customer support within the app.

- Review System: Allow users to rate and review their experience with the service and specific products.

- Loyalty Programs: Introduce rewards and loyalty programs to incentivize repeat customers.

- Delivery Scheduling: Provide an option for users to schedule deliveries for a specific time and date.

- Coupon Management: Allow users to apply discount codes and coupons at checkout.

- Order History: Let users view past orders and easily reorder their favorite items.

- Product Filtering: Provide robust filtering and sorting options to help users find products quickly.

- Geolocation Features: Implement geolocation to show nearby stores and estimate delivery times.

Ideal candidates should have prior experience with developing cross-platform apps and integrating secure payment gateways. Please provide samples of your previous work for consideration.

Include a customer support chat feature to assist users in real-time. The app should have a colorful and vibrant design theme to make it visually appealing and engaging. The app should have a sophisticated design with advanced UI/UX elements for enhanced user engagement. The project should be completed within 3-6 months. The app should feature advanced admin controls for comprehensive management of orders, users, and inventory. The app should have a modern and minimalist design style. Implement a side menu drawer to access additional features and settings. Use status update notifications to inform users about their delivery progress. The app should be integrated with a NoSQL database for flexible and scalable data handling.