There is no one-size-fits-all answer to this question, as the implementation details will vary depending on the specific Appirater developer's needs and preferences. However, in general, a Appirater developer will need to create a custom user interface for their app that includes an "Rate This App" button or link. Once clicked, this should take the user to the appropriate page on the App Store (or wherever else the rating system is hosted). The developer may also need to track how often the app is used and when significant events occur (such as completing a level in a game) in order to determine when to prompt the user to rate the app.