Graph API requests made with an application access token are counted against that app’s rate limit. An app’s call count is the number of calls it can make during a rolling one hour window and is calculated as follows: Calls within one hour = 200 * Number of Users The Number of Users is based on the number of unique daily active users an app has. In cases where there are slow periods of daily usage, such as if your app has high activity on weekends but low activity over weekdays, the weekly and monthly active Users are used to calculate the number of Users for your app. Apps with high daily engagement will have higher rate limits than apps with low daily engagement, regardless of the actual number of app installs.