How do I switch my World war to another phone?

Install astro file manager. Select tools, perform a backup apps on your current phone and then visa versa on your new phone.

 

Actually, there is an ingame method to transfer. Go to your settings setup a username and password for Storm8, once you do that hit the transfer to new phone button, it will ask you if you are on your new or old phone, select old. Then on your new phone, go into settings and hit the transfer button again, it will ask you to login using the username and password you just created, I believe you hit transfer after that and bam balam it's good to go. I just did this an hour ago.