iOS link: http://itunes.com/apps/sqex_token
Android: https://play.google.com/store/apps/details?id=com.square_enix_software_token&feature=nav_result#?t=W251bGwsMSwxLDMsImNvbS5zcXVhcmVfZW5peF9zb2Z0d2FyZV90b2tlbiJd
I haven't set it up yet, will do a bit later on.