Airfoil for Mac and Airfoil for Windows are distinct products, each requiring their own license. However, if you own Airfoil for one platform, you can save $18 off the purchase of a license for the other platform!
Just enter your current Airfoil license key below to receive your discount:
Lost Key? If you don't know your exact license key, don't worry - you can recover it, then come back here to upgrade.