If you have purchased a license on our website www.anatomyka.com, you can use the app on two devices at the same time, one of which must be a Windows/Mas OS device and the other an Android/iOS device. Changing the device You can change the device on which you use the app at any time (in case you lose your device, buy a new one, etc.). Moving the app to another device is easy, just go to the portal to the “Licenses and Downloads” section and find the license you want to deactivate. Click the deactivate button and the license will be released for the new device. The license is automatically activated by logging into the app on the new device. *If you want to use the app on more than two devices at the same time, you must purchase an additional license.