i'm using official c3 google play and mobile advert plugins on construct 2.
is it legal?
I will find another solution if not legal.
The Construct 3 : Google Play and Construct 3 : Mobile Advert are forked from Cordova plugins made by Cordova developers who released it free for use, and so are the Construct 3 Cordova plugins.
So if you made your own Construct 2 plugins using the Construct 3 Cordova plugins, those should be legal as it is not stealing, for it is already publicly available on GitHub & NPMjs.