Ad Mediation is a process that helps app developers manage multiple advertising networks to maximize revenue. By using a mediation platform, developers can connect to various ad networks and optimize which ads are shown to users based on performance metrics. This ensures that the most profitable ads are displayed, increasing overall earnings. The mediation platform automatically selects the best-performing ads in real-time, allowing developers to focus on creating content rather than managing ads. This approach not only enhances user experience by showing relevant ads but also improves fill rates and reduces the chances of ad fatigue among users.