It is a wise decision made by you to invest in a Zomato like app development. Food delivery apps are gaining immense popularity in the modern world and are expected to grow exponentially for years to come. You cannot quote a fixed price for developing an app like Zomato, as it depends on several factors. However, let me share the time taken for each stage of app development. You can get a rough estimate for app development in this way.
Thus it takes around 2500-3000 hours to develop an app like Zomato. By assuming development cost to be $100 per hour, app developers may demand $25000-$30000.