Ho acquistato una licenza CCleaner pro plus per 3 dispositivi. Come devo fare per estenderla ad altri due dispositivi?
Simply download CCleaner Free onto the other devicea and then register/activate it as CCleaner Pro by entering the same licence key.
You can use that same Pro-Plus licence for any mix of up-to 3-devices, Windows, Mac, or Android.
(It cannot be used on CCleaner for iOS though, currently that has to be a seperate licence, bought seperately through the Apple Store).
You can download an installer for CCleaner Free for Windows from here: CCleaner - Download Builds
You can download CCleaner Free for Mac from here: Free Mac Clean Up Software | CCleaner for Mac?
CCleaner Free for Android you get from the Google Play store.
To register/activate any version (PC, Mac, or Android) from Free to Pro see:
https://support.ccleaner.com/s/article/how-to-register-and-activate-ccleaner-professional?language=en_US