Why do I have to sign in each time?
I get asked to sign in to find my iPhone each time. How can I change that?
Where is it that you are trying to sign into Find My iPhone? You posted in the iWork for iCloud forum, so no clue what device/computer you are doing this on, what iOS or OS you are running, how you are trying to access Find My iPhone, or what screen you are being asked to sign into.
Please provide this information so we can help.
Best,
GB