Using license key on another device

CCleaner for Android
1

I have a license key that allows me to use it on multiple devices, but I cannot find a way to use the license key on the other device. How do I use the license key on a differential device?

2

what kind of device? ios, android, windows, mac?

3

Generally as this article shows, but ask if there is anything specific that you don’t understand:

https://support.ccleaner.com/s/article/how-to-register-and-activate-ccleaner-professional?language=en_US