Is there a way to change capt address associated to my android faucets or I have to uninstall it from my android device and then make a new installation with my new address?
No, it's not possible to change the address. You'd need to re-install or delete the application data to be able to enter a new address.
There is an android faucet? I mean is it already out, I remember reading about it but I heard it was still in testing so didnt pay much heed to it. has it been published yet fully and if so what is it called?
Yes, beta testing is over. It just lasted a couple of days.
It's called "CAPTcoin Faucet". Here's the link:
https://play.google.com/store/apps/details?id=com.captcoin.faucet