Sure, here are some things to consider when developing a food delivery app:

• Must-have features: The app should have the following features at a minimum: restaurant listings, user profiles, ratings and reviews, map and navigation, and the ability to order food.
• Unique features: To stand out from the competition, the app should have some unique features which is present in app like Zomato, such as the ability to book reservations, offer discounts or coupons, or provide personalized recommendations.
• Design and UI/UX: The app should have a well-designed and user-friendly interface that makes it easy for users to find what they're looking for.
• Marketing and promotion: The app needs to be marketed and promoted effectively to reach a large audience.