License not found

I install the ccleaner android by playstore, and did the upgrade to ccleaner pro on the app…
When I try update on my other mobile ask for the license key…
Where I can get this key?
I put my emails, but none was found…

if you went pro from the app (on device), you did it through playstore, then you do not have a license key, google should activate the pro on further devices (i think, maybe it’s per device but i don’t think so)

CCleaner Android when purchased through the Play Store is linked to your Google account rather than linked to a licence key.
(You do not have a CCleaner licence key when purchased through the Play Store, and Piriform/CCleaner know nothing about your purchase. You have bought from Google not from CCleaner).

You can use the Play Store app that you have purchased on any Android device, as long as you are logged into the same Google account that you made the purchase from.

that means that if you want to use the same purchased app on both phones then you need to use (log into) the same Google account on both phones.