Philo allows streaming on up to three devices simultaneously. This means that you can watch different shows or channels on three separate screens at the same time. If you try to stream on a fourth device while three devices are already in use, you will receive a notification indicating that the limit has been reached. It is important to note that the user account used to log in determines the number of allowed streams. Philo also allows users to easily manage their devices in their account settings. For further details regarding device management or any changes, it can be helpful to refer to the official Philo website for the most current information and updates.