Abstract: The disclosed computer-implemented method for tuning application network behavior may include identifying an application for a closed operating system. The closed operating system may prevent applications from implementing machine-level traffic control for network traffic. The method may include determining an expected network behavior of the application, intercepting network traffic of the application on the closed operating system, determining whether the intercepted network traffic conforms to the expected network behavior, and modifying, based on the determining whether the intercepted network traffic conforms to the expected network behavior, the network traffic. Various other methods, systems, and computer-readable media are also disclosed.