FL Studio licenses are generally for use on a single device, but Image-Line offers a unique lifetime free updates policy. This means that once you purchase FL Studio, you can install and use it on any number of devices, as long as it’s for your personal use. However, you should not share your license or install it on devices used by others. If you need to switch devices frequently, you might need to deactivate the license on one device before activating it on another. Always refer to the terms of your specific license for details on usage rights.