The document discusses the costs associated with building an online grocery delivery app like Zepto, targeting a rapidly growing market expected to reach $3396 billion by 2033. It outlines key factors influencing development costs, including features, complexity, development team choice, and technology stack, while comparing operator-based and company-based delivery models. The overall cost for basic features can start around $15,000, potentially rising to $50,000 for advanced functionalities, emphasizing the importance of understanding specific requirements and team locations in determining final costs.