Very possible. First: Link your iDevice account to a PC account (it has to be connected to Facebook) Last: Link your Android account to that same PC account that is linked to Facebook and select the iDevice account you wish to keep. Note: Your iDevice will have no account on it, and your previous android account is gone. If you need more detail let me know where you are confused/stuck.
1) Link your iDevice account through facebook. 2) Create a new account on your android device. 3) Link your android account to your facebook and choose your old account when asked which you'd like to keep. 4) Crack open a bottle of your favorite beverage and enjoy KaWing on a much superior platform