Local Delivery Android App Development

I am looking for an experienced Android developer to create a local delivery application similar to Swiggy Instamart. This app is intended for municipal locations and should allow delivery of various items, specifically groceries, pharmacy items, and household supplies.

Priority is our Grand parents, few are dont have any support, so to them only looking this app.

Key Features:
- Order Tracking: Users should be able to monitor their orders in real-time.
- In-app Payments: A secure, seamless payment gateway integrated within the app.
- User Reviews: A system for users to rate and review their delivery experience.

Primary Users:
- The main target of the app will be local residents. The app should be easy to use and cater to the needs of the community.

Payment and Development:
- The app should be developed at no upfront cost. The payment will be shared based on the app's successful performance.

Ideal Skills and Experience:
- Extensive knowledge in Android development.
- Prior experience in creating delivery or e-commerce apps.
- Proficiency in integrating payment gateways and tracking systems.
- Ability to design a user-friendly interface suitable for local residents.