Maintaining a food delivery app like Deliveroo involves ongoing costs to ensure smooth performance, user satisfaction, and security. Key maintenance tasks include bug fixes, regular updates, server upkeep, third-party API support, and adapting to new OS versions. These ensure the app stays compatible, fast, and user-friendly. Monthly maintenance costs for a Deliveroo-like app can range from 15% to 20% of the initial development cost. As your app grows, you may also need to scale servers, upgrade features, and improve customer support. Regular maintenance is essential to retain users, reduce downtime, and stay competitive in the food delivery market.